Class of Stock [Axis]
Common Stock, par value $0.01 per share
6.00% Notes due 2026
Asset Class [Axis]
Non-Controlled/Non-Affliate Investments [Member]
Non-Controlled/Affliate Investments [Member]
Controlled Investments [Member]
Treasurybills [Member]
Investments [Member]
Debt Instrument [Axis]
4.75% Convertible Senior Notes [Member]
6.00% Notes [Member]
Consolidated Entities [Axis]
Non-Controlled/Non-Affiliate [Member]
Legal Entity [Axis]
Course Hero, Inc. [Member]
Preferred shares, Series A 8% [Member]
Preferred shares, Series C 8% [Member]
Blink Health, Inc. [Member]
Series A Preferred Stock [Member]
Series C Preferred Stock [Member]
Orchard Technologies, Inc. [Member]
Series D Preferred Stock [Member]
Simple Agreement for Future Equity [Member]
Whoop, Inc. [Member]
Aspiration Partners, Inc. [Member]
Preferred shares, Series C-3 [Member]
Nextdoor Holdings, Inc. [Member]
Common Class B [Member]
Forge Global Holdings, Inc. [Member]
Common Stock [Member]
Shogun Enterprises, Inc. [Member]
Preferred shares, Series B-1 [Member]
Preferred shares, Series B-2 [Member]
Convertible Note 0.5%, Due 4/18/2024 [Member]
Trax Ltd. [Member]
Preferred Stock Investec Series [Member]
Residential Homes For Rent, LLC [Member]
Term Loan 15% Due 2023 [Member]
New Lake Capital Partners Inc fka Green Acreage Real Estate Corp [Member]
True Global Ventures 4 Plus Pte Ltd [Member]
Limited Partner Fund Investment [Member]
PayJoy, Inc. [Member]
Preferred Stock [Member]
Skillsoft Corp. [Member]
Aventine Property Group, Inc.[Member]
Non-Controlled Affiliate [Member]
Varo Money Inc [Member]
Commercial Streaming Solutions Inc. [Member]
Rebric, Inc. [Member]
Preferred Stock Series Seed-4 [Member]
X group Holdings Limited [Member]
Convertible Note 6% Due On Two Thousand Twenty Three [Member]
Rent Runway Inc [Member]
EDGE Markets, Inc. [Member]
Preferred Stock, Series Seed [Member]
YouBet Technology, Inc. [Member]
Preferred Stock Series Seed 2 [Member]
Rover Group, Inc. [Member]
Churchill Sponsor VII LLC [Member]
Warrant [Member]
AltC Sponsor LLC [Member]
Churchill Sponsor VI LLC [Member]
Kahoot ASA [Member]
Neutron Holdings, Inc. [Member]
Junior Preferred Stock Series D 1 [Member]
Junior Preferred Convertible Note 4% Due 5/11/2027 [Member]
Common Warrants, Strike Price $0.01, Expiration Date 5/11/2027 [Member]
Fullbridge, Inc. [Member]
Promissory Note 1.47%, Due 11/9/2021 [Member]
Treehouse Real Estate Investment Trust, Inc. [Member]
Kinetiq Holdings LLC [Member]
Common Class A [Member]
StormWind, LLC [Member]
Preferred Shares Series D 8% [Member]
Preferred Shares Series C 8% [Member]
Preferred Shares Series B 8% [Member]
Preferred Shares Series A 8% [Member]
OneValley, Inc. (f/k/a NestGSV, Inc.) [Member]
Derivative Security, Expiration Date 8/23/2024 [Member]
Convertible Promissory Note 8% Due 8/23/2024 [Member]
One Valley Inc Next GSV Inc [Member]
Preferred Warrant Series B [Member]
Ozy Media, Inc. [Member]
Preferred shares, Series C-2 6% [Member]
Preferred shares, Series B 6% [Member]
Preferred Shares Series A 6 % [Member]
Preferred Shares Series Seed 6% [Member]
Common Warrants [Member]
Maven Reseach Inc [Member]
Preferred Shares Series B 5% [Member]
Curious.Com Inc [Member]
Controlled [Member]
Architect Capital PayJoy SPV, LLC [Member]
Membership Interest in Lending SPV [Member]
Colombier Sponsor LLC [Member]
Class B Units [Member]
Class W Units [Member]
SPBRX, INC. (f/k/a GSV Sustainability Partners, Inc.) [Member]
Preferred Class A [Member]
Portfolio Investments [Member]
U S. Treasury Bill [Member]
Common Shares Class AA [Member]
Junior Preferred Shares [Member]
Junior Preferred Warrants [Member]
Preferred Shares Investec Series [Member]
NewLake Capital Partners, Inc. [Member]
Preferred Shares Series B-1 [Member]
Preferred Shares Series B-2 [Member]
Enjoy Technology, Inc [Member]
Junior Preferred Shares Series 1-D [Member]
Term Loan Due [Member]
Rent the Runway, Inc. [Member]
Commercial Streaming Solutions Inc [Member]
Preferred Shares Series Seed-4 [Member]
Palantir Lending Trust SPV One [Member]
Equity Participation In Underlying Collatera [Member]
Preferred Shares Series Seed-2 [Member]
Churchill Sponsor Seven LLC [Member]
Common Share Units [Member]
Warrant Units [Member]
Share Units [Member]
Churchill Sponsor Six LLC [Member]
Strom Wind LLC [Member]
Preferred shares, Series D 8% [Member]
Preferred shares, Series B 8% [Member]
OneValley, Inc. [Member]
Convertible Promissory Note [Member]
Preferred Warrant Series B, Strike Price $2.31, Expiration Date 5/29/2022 [Member]
Preferred Warrant Series B, Strike Price $2.31, Expiration Date 12/31/2023 [Member]
Preferred shares, Series C-2 6% [Member]
Preferred shares, Series B 6% [Member]
Preferred shares, Series A 6% [Member]
Preferred shares, Series Seed 6% [Member]
Maven Research Inc [Member]
Membership Interest in Lending SPV [Member]
SPBRX Inc [Member]
Investment Type [Axis]
Non-Qualifying Assets [Member]
True Global Ventures 4 Plus Fund LP [Member]
Forge Global, Inc.[Member]
Palantir Lending Trust SPV I [Member]
Rover Inc [Member]
Clever Inc [Member]
Investment, Name [Axis]
GCL [Member]
SuRo Capital Sports, LLC ("SuRo Sports") [Member]
Taxable Subsidiaries [Member]
GSVC AE Holdings, Inc. ("GAE") [Member]
GSVC AV Holdings, Inc. ("GAV") [Member]
GSVC SW Holdings, Inc. ("GSW") [Member]
GSVC SVDS Holdings, Inc. ("SVDS") [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Axis]
Consulting Agreement [Member]
Related Party [Axis]
Michael T. Moe [Member]
Amended and Restated Trademark License Agreement [Member]
GSV Asset Management [Member]
Private Portfolio Companies [Member]
Debt Investments [Member]
Equity Option [Member]
Publicly Traded Portfolio Companies [Member]
Investment Secondary Categorization [Axis]
West [Member]
Northeast [Member]
Midwest [Member]
International [Member]
Education Technology [Member]
Financial Technology [Member]
Marketplaces [Member]
Social/Mobile [Member]
Big Data/Cloud [Member]
Sustainability [Member]
Fair Value Hierarchy and NAV [Axis]
Fair Value, Inputs, Level 1 [Member]
Fair Value, Inputs, Level 2 [Member]
Fair Value, Inputs, Level 3 [Member]
Non-Portfolio Investments [Member]
Common Stock in Private Companies [Member]
Valuation Approach and Technique [Axis]
Valuation, Market Approach [Member]
Measurement Input Type [Axis]
Measurement Input, Revenue Multiple [Member]
Statistical Measurement [Axis]
Minimum [Member]
Maximum [Member]
Weighted Average [Member]
Measurement Input Liquidation Value [Member]
PWERM [Member]
AFFO Multiple [Member]
Preferred Stock in Private Companies [Member]
Valuation Technique, Discounted Cash Flow [Member]
Measurement Input, Discount Rate [Member]
DLOM [Member]
Measurement Input, Discount for Lack of Marketability [Member]
Measurement Input Financing Risk [Member]
Valuation Technique, Option Pricing Model [Member]
Measurement Input Term of Expiration [Member]
Measurement Input, Option Volatility [Member]
Measurement Input, Price Volatility [Member]
Options [Member]
Equity Components [Axis]
Series F Preferred Stock [Member]
Coursera, Inc. [Member]
Series B Preferred Stock [Member]
Options Held [Member]
Non-Controlled Affiliate Investments [Member]
Knowledge Networks [Member]
Preferred Shares, Series C-2 6% [Member]
Digital Media Platform [Member]
Preferred Shares, Series B 6% [Member]
Preferred Shares, Series A 6% [Member]
Preferred Shares, Series Seed 6% [Member]
Preferred Shares, Series D 8% [Member]
Interactive Learning [Member]
Preferred Shares, Series C 8% [Member]
Preferred Shares, Series B 8% [Member]
Preferred Shares, Series A 8% [Member]
Preferred Warrants [Member]
Global Innovation Platform [Member]
Preferred Warrant Series B Stock [Member]
Online Education [Member]
CUX Inc [Member]
Convertible Preferred Shares Series D [Member]
Corporate Education [Member]
Convertible Preferred Shares Series C [Member]
Preferred Warrant Series A-3 [Member]
Preferred Warrant Series A Four One [Member]
Preferred Warrant Series A Four Two [Member]
Preferred Warrants Series B [Member]
Cannabis REIT [Member]
Share Repurchase Program [Member]
Title of Individual [Axis]
Board of Directors [Member]
Subsequent Event Type [Axis]
Subsequent Event [Member]
Modification of Dutch Auction Tender Offer and Cash Dividends [Member]
4.75% Convertible Senior Notes due 2023 [Member]
Type Of Arragement [Axis]
At-the-Market Sales Agreement [Member]
Debt Instruments [Axis]
Non-Binding Investment Agreement [Member]
6.00% Notes due 2026 [Member]
Sale of Stock [Axis]
Over-Allotment Option [Member]
4.75% Convertible Senior Notes due 2023 [Member]
Scenario [Axis]
Long-Term Debt, Type [Axis]
5.25% Convertible Senior Notes due 2018 [Member]
Credit Facility [Axis]
Western Alliance Bank [Member]
Plan Name [Axis]
2019 Enquity Incentive Plan [Member]
Award Type [Axis]
Share-Based Payment Arrangement, Option [Member]
Amended and Restated 2019 Equity Incentive Plan [Member]
Non Employee Director [Member]
Restricted Stock [Member]
Restricted Shares of Common Stock [Member]
2020 Non-employee Director [Member]
2021 Non-employee Director [Member]
Restricted Share Grants [Member]
Statement [Table]
Statement [Line Items]
Document Type
Amendment Flag
Amendment Description
Document Registration Statement
Document Annual Report
Document Quarterly Report
Document Transition Report
Document Shell Company Report
Document Shell Company Event Date
Document Period Start Date
Document Period End Date
Document Fiscal Period Focus
Document Fiscal Year Focus
Current Fiscal Year End Date
Entity File Number
Entity Registrant Name
Entity Central Index Key
Entity Primary SIC Number
Entity Tax Identification Number
Entity Incorporation, State or Country Code
Entity Address, Address Line One
Entity Address, Address Line Two
Entity Address, Address Line Three
Entity Address, City or Town
Entity Address, State or Province
Entity Address, Country
Entity Address, Postal Zip Code
Country Region
City Area Code
Local Phone Number
Extension
Written Communications
Soliciting Material
Pre-commencement Tender Offer
Pre-commencement Issuer Tender Offer
Title of 12(b) Security
No Trading Symbol Flag
Trading Symbol
Security Exchange Name
Title of 12(g) Security
Security Reporting Obligation
Annual Information Form
Audited Annual Financial Statements
Entity Well-known Seasoned Issuer
Entity Voluntary Filers
Entity Current Reporting Status
Entity Interactive Data Current
Entity Filer Category
Entity Small Business
Entity Emerging Growth Company
Elected Not To Use the Extended Transition Period
Document Accounting Standard
Other Reporting Standard Item Number
Entity Shell Company
Entity Public Float
Entity Bankruptcy Proceedings, Reporting Current
Entity Common Stock, Shares Outstanding
Documents Incorporated by Reference [Text Block]
Impairment Effects on Earnings Per Share [Table]
Impairment Effects on Earnings Per Share [Line Items]
ASSETS
Investments at fair value:
Total Portfolio Investments
Investments in U.S. Treasury bills (cost of $99,173,075 and $0, respectively)
Total Investments
Cash
Proceeds receivable
Escrow proceeds receivable
Interest and dividends receivable
Deferred financing costs
Prepaid expenses and other assets
Total Assets
LIABILITIES
Accounts payable and accrued expenses
Accrued interest payable
Dividends payable
6.00% Notes due December 30, 2026
Total Liabilities
Commitments and contingencies (Notes 7 and 10)
Net Assets
NET ASSETS
Common stock, par value $0.01 per share (100,000,000 authorized; 28,333,661 and 31,118,556 issued and outstanding, respectively)
Paid-in capital in excess of par
Accumulated net investment loss
Accumulated net realized gain on investments, net of distributions
Accumulated net unrealized appreciation/(depreciation) of investments
Net Assets
Net Asset Value Per Share
Investment owned at fair value
Investments
Common stock, par value
Common stock, shares authorized
Common stock, shares issued
Common stock, shares outstanding
Debt instrument interest rate
Debt instrument effective interest rate
Debt instrument face amount
INVESTMENT INCOME
Interest income
Dividend income
Total Investment Income
OPERATING EXPENSES
Compensation expense
Directors’ fees
Professional fees
Interest expense
Income tax expense
Other expenses
Total Operating Expenses
Net Investment Loss
Realized Gain/(Loss) on Investments:
Net Realized Gain/(Loss) on Investments
Change in Unrealized Appreciation/(Depreciation) of Investments:
Net Change in Unrealized Appreciation/(Depreciation) of Investments
Net Change in Net Assets Resulting from Operations
Net Change in Net Assets Resulting from Operations per Common Share:
Basic
Diluted
Weighted-Average Common Shares Outstanding
Basic
Diluted
Income Statement [Abstract]
Anti-dilutive securities
Investment Company [Abstract]
Balance, shares
Change in Net Assets Resulting from Operations
Net investment loss
Net realized (loss) gain on investments
Net change in unrealized (depreciation) appreciation of investments
Balance, shares
Distributions
Dividends declared
Total distributions
Change in Net Assets Resulting from Capital Transactions
Issuance of common stock from public offering
Issuance of common stock from conversion of 4.75% Convertible Notes due 2023
Stock-based compensation
Repurchases of common stock
Issuance of common stock from stock dividend
Net change in net assets resulting from capital transactions
Total change in net assets
Stock-based compensation
Balance, shares
Capital Share Activity
Shares outstanding at beginning of period
Issuance of common stock from public offering, shares
Issuance of common stock under restricted stock plan, shares
Issuance of common stock from conversion of 4.75% Convertible Notes due 2023, shares
Issuance of common stock from stock dividend, shares
Shares repurchased, shares
Balance, shares
Debt Disclosure [Abstract]
Common stock from conversion of convertible notes
Debt instrument maturity date, description
Statement of Cash Flows [Abstract]
Cash Flows from Operating Activities
Net change in net assets resulting from operations
Adjustments to reconcile net change in net assets resulting from operations to net cash provided by/(used in) operating activities:
Net realized (gain)/loss on investments
Net change in unrealized (appreciation)/depreciation of investments
Amortization of discount on 4.75% Convertible Senior Notes due 2023
Amortization of discount on 6.00% Notes due 2026
Stock-based compensation
Adjustments to escrow proceeds receivable
Forfeited interest on 4.75% Convertible Senior Notes due 2023
Purchases of investments in:
Portfolio investments
U.S. Treasury bills
Proceeds from sales or maturity of investments in:
Portfolio investments
U.S. Treasury bills
Change in operating assets and liabilities:
Prepaid expenses and other assets
Interest and dividends receivable
Proceeds receivable
Escrow proceeds receivable
Payable for securities purchased
Accounts payable and accrued expenses
Income tax payable
Accrued interest payable
Net Cash Provided by/(Used in) Operating Activities
Cash Flows from Financing Activities
Proceeds from the issuance of common stock, net
Redemption of 4.75% Convertible Senior Notes due 2023
Repurchases of common stock
Cash dividends paid
Cash paid for fractional shares
Deferred financing costs
Net Cash Used in Financing Activities
Total Increase/(Decrease) in Cash Balance
Cash Balance at Beginning of Year
Cash Balance at End of Period
Supplemental Information:
Interest paid
Taxes paid
Conversion of 4.75% Convertible Senior Notes due 2023
Schedule of Short-Term Debt [Table]
Short-Term Debt [Line Items]
Conversion of 4.75% Convertible Senior Notes due 2023
Headquarters/Industry
Date of Initial Investment
Investment Owned, Balance, Shares
Cost
Fair Value
% of Net
Investment Holdings [Table]
Summary of Investment Holdings [Line Items]
Percentage for total investment
Investment net
Capital commitment
Dividend distributions
Proceeds from investment
Debt interest rate
Repayment for investment
Strike price
Warrant exercise price
Number of warrants
Number of warrants converted to common stock
Remaining common stock issued
Shares issued on exhange
Investment interest
Sale of common shares
Organization, Consolidation and Presentation of Financial Statements [Abstract]
NATURE OF OPERATIONS
Accounting Policies [Abstract]
SIGNIFICANT ACCOUNTING POLICIES
Related Party Transactions [Abstract]
RELATED-PARTY ARRANGEMENTS
Investments in and Advances to Affiliates [Abstract]
INVESTMENTS AT FAIR VALUE
Equity [Abstract]
COMMON STOCK
Earnings Per Share [Abstract]
NET CHANGE IN NET ASSETS RESULTING FROM OPERATIONS PER COMMON SHARE—BASIC AND DILUTED
Commitments and Contingencies Disclosure [Abstract]
COMMITMENTS AND CONTINGENCIES
FINANCIAL HIGHLIGHTS
Income Tax Disclosure [Abstract]
INCOME TAXES
DEBT CAPITAL ACTIVITIES
Share-Based Payment Arrangement [Abstract]
STOCK-BASED COMPENSATION
Subsequent Events [Abstract]
SUBSEQUENT EVENTS
SUPPLEMENTAL FINANCIAL DATA
Basis of Presentation
Basis of Consolidation
Use of Estimates
Uncertainties and Risk Factors
Investments at Fair Value
Securities Transactions
Valuation of Other Financial Instruments
Revenue Recognition
Investment Transaction Costs and Escrow Deposits
Unrealized Appreciation or Depreciation of Investments
U.S. Federal and State Income Taxes
Per Share Information
Recently Issued or Adopted Accounting Standards
SCHEDULE OF COMPANY’S SUBSIDIARIES
SCHEDULE OF DEFERRED FINANCING COSTS
SCHEDULE OF COMPOSITION OF INVESTMENT PORTFOLIO
SCHEDULE OF FAIR VALUE OF INVESTMENT VALUATION INPUTS
SCHEDULE OF FAIR VALUE OF ASSETS ON UNOBSERVABLE INPUT
SCHEDULE OF AGGREGATE VALUE OF ASSETS AND LIABILITIES
SCHEDULE OF INVESTMENTS IN AND ADVANCES TO AFFILIATES
SCHEDULE OF INVESTMENTS IN AND ADVANCES TO AFFILIATES
SCHEDULE OF BASIC AND DILUTED COMMON SHARE
SCHEDULE OF FUTURE MINIMUM PAYMENTS OF OPERATING LEASE
SCHEDULE OF FINANCIAL HIGHLIGHTS
SCHEDULE OF DEBT
SCHEDULE OF STOCK OPTIONS, VALUATION ASSUMPTIONS
SCHEDULE OF OPTION, ACTIVITY
SCHEDULE OF EQUITY INCENTIVE PLAN
SCHEDULE OF INVESTMENTS
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Table]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Jurisdiction of Incorporation
Formation Date
Percentage Owned
Deferred debt issuance costs
Deferred offering costs
Deferred Financing Costs
Deferred financing costs
Operating leases, term of contract
Escrow deposits
Schedule of Related Party Transactions, by Related Party [Table]
Related Party Transaction [Line Items]
Consulting expense
Licensing expense
Investment owned at fair value
Schedule of Defined Benefit Plans Disclosures [Table]
Defined Benefit Plan Disclosure [Line Items]
Investment at Cost
Percentage of Net Assets
Percentage of Portfolio
Total
Fair value of assets
Valuation Approach/ Technique
Unobservable Inputs
Range (Weighted Average)
Fair Value, Beginnng
Transfers out of Level 3
Purchases, capitalized fees and interest
Sales/Maturity of investments
Realized gains/(losses)
Net change in unrealized appreciation/(depreciation) included in earnings
Fair Value, Ending
Net change in unrealized appreciation/ (depreciation) of Level 3 investments still held
Schedule of Investments [Table]
Schedule of Investments [Line Items]
Expiration Date
Interest rate percentage
Interest rate percentage
Principal/Quantity
Interest, Fees, or Dividends Credited in Income
Fair value of investment, beginning balance
Transfer In/Out
Purchases, Capitalized Fees, Interest and Amortization
Sales
Realized Gains/(Losses)
Unrealized Gains/(Losses)
Fair value of investment, ending balance
Sales
Principal/Quantity
Sales
Maturity date
Strike Price
Warrant expiration date
Capital Commitment
Accumulated Other Comprehensive Income (Loss) [Table]
Accumulated Other Comprehensive Income (Loss) [Line Items]
TypeOfArragementAxis [Axis]
DebtInstrumentsAxis [Axis]
Payment for repurchase of common stock
Common stock par value
Common stock value
Stock repurchased during period value
Increase in amount of shares, repurchased value
Number of shares repurchased
Remain available for sale, amount
Share-based compensation, options, grants in period, shares
Expired date
Share price
Outstanding shares
Dividend per share
Payments for dividends
Number of shares issued
Debt conversion amount
Redeemed Aggregate amount
Aggregate principal amount
Sale of stock aggregate amount
Shares issued value
Gross sales price, percentage
Weighted average price per share
Proceeds from issuance of common stock
Proceeds from issuance or sale of equity
Net change in net assets resulting from operations
Weighted-average common shares–basic
Earnings per common share–basic
Net change in net assets resulting from operations
Adjustment for interest and amortization on 4.75% Convertible Senior Notes due 2023
Net change in net assets resulting from operations, as adjusted
Adjustment for dilutive effect of 4.75% Convertible Senior Notes due 2023
Weighted-average common shares outstanding–diluted
Earnings per common share–diluted
2022
2023
2024
Total
Collaborative Arrangement and Arrangement Other than Collaborative [Table]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Investment amount
Operating lease right of use assets
Operating lease, liability
Security deposit
Operating lease, expense
Operating lease remaining term
Lessee, operating lease, discount rate
Net asset value at beginning of the year
Net investment loss
Net realized gain/(loss) on investments
Net change in unrealized appreciation/(depreciation) of investments
Dividends declared
Issuance of common stock from stock dividend
Issuance of common stock from public offering
Issuance of common stock from conversion of 4.75% Convertible Notes due 2023
Repurchase of common stock
Stock-based compensation
Net asset value at end of period
Per share market value at end of period
Total return based on market value
Total return based on net asset value
Average net assets
Ratio of net operating expenses to average net assets
Ratio of net investment loss to average net assets
Portfolio Turnover Ratio
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Table]
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]
Investment gain percent
Distribution per share
Nondeductible excise tax, percent
Income tax, description
Initial aggregate principal amount of 4.75% Convertible Senior Notes due 2023
Conversion of 4.75% Convertible Senior Notes due 2023
Redemption of 4.75% Convertible Senior Notes due 2023
Direct deduction of deferred debt issuance costs
4.75% Convertible Senior Notes due 2023 Payable
Proceeds from debt
Debt instrument, issuance date
Debt instrument, interest rate
Debt instrument, frequency of periodic payment description
Debt instrument, notes redeem, description
Redemption price percent
Closing market price, per note
Debt instrument, fair value
Proceeds from convertible debt
Debt instrument, maturity date
Debt instrument, redemption date, description
Debt instrument, redemption amount, per convertible note
Debt instrument, redemption amount
Debt conversion, shares issued, shares
Debt instrument, principal amount
Debt instrument, conversion price
Debt conversion, shares issued, value
Line of credit, minimum maintain balance
Line of credit, maturity date
Term (years)
Volatility
Risk-free rate
Dividend yield
Number of shares, outstanding
Weighted-Average exercise price, outstanding
Weighted-Average grant date fair value, outstanding
Number of shares cancelled
Weighted-Average exercise price, cancelled
Weighted-Average Grant Date Fair Value, Cancelled
Number of shares, outstanding
Weighted-Average exercise price, outstanding
Weighted-Average grant date fair value, outstanding
Number of vested and exercisable
Weighted-Average exercise price, vested and exercisable
Weighted-Average grant date fair value, vested and exercisable
Number of shares, cancelled
Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Outstanding as of December 31, 2021
Granted
Vested
Forfeited
Outstanding as of September 30, 2022
Vested as of September 30, 2022
Shares granted
Stock ownership percentage
Share based payment award description
Options vesting, period
Weighted average price per share
Unrecognized share based compensation
Opions forfeited, date
Shares issued, value
Restricted shares issued, value
Share-based payment award options grants value
Number of shares vested
Number of shares vested in period
Subsequent Event [Table]
Subsequent Event [Line Items]
Transaction Date
Shares sold
Average Net Share Price
Net Proceeds
Realized Gain
Common stock held
Repayments of debt
Non-binding investment
Shares repurchased
GCL [Member]
SuRo Capital Sports, LLC (“SuRo Sports”) [Member]
Taxable Subsidiaries [Member]
GSVC AE Holdings, Inc. (“GAE”) [Member]
GSVC AV Holdings, Inc. (“GAV”) [Member]
GSVC SW Holdings, Inc. (“GSW”) [Member]
GSVC SVDS Holdings, Inc. (“SVDS”) [Member]
Consulting Agreement [Member]
Michael T. Moe [Member]
Amended and Restated Trademark License Agreement [Member]
GSV Asset Management [Member]
Churchill Sponsor VI LLC [Member]
Churchill Sponsor VII LLC [Member]
Skillsoft Corp. [Member]
Shogun Enterprises, Inc [Member]
Architect Capital PayJoy SPV, LLC [Member]
Colombier Sponsor LLC [Member]
AltC Sponsor LLC [Member]
Private Portfolio Companies [Member]
Debt Investments [Member]
Publicly Traded Portfolio Companies [Member]
Controlled Investments [Member]
West [Member]
Northeast [Member]
Midwest [Member]
International [Member]
Education Technology [Member]
Financial Technology [Member]
Marketplaces [Member]
Social/Mobile [Member]
Big Data/Cloud [Member]
Sustainability [Member]
Investment owned percent of investment portfolio.
Common Stock in Private Companies [Member]
Preferred Stock in Private Companies [Member]
Options [Member]
PWERM [Member]
AFFO Multiple [Member]
Measurement Input Financing Risk [Member]
Measurement Input Term of Expiration [Member]
Share Repurchase Program [Member]
Investments in U.s. treasury bills cost.
Board of Directors [Member]
Investment Industry Description.
Non-Controlled/Non-Affiliate [Member]
Course Hero, Inc. [Member]
Preferred shares, Series A 8% [Member]
Common Warrants [Member]
Junior Preferred Warrants [Member]
2019 Enquity Incentive Plan [Member]
Escrow proceeds receivable
4.75% Convertible Senior Notes due 2023 [Member]
Interest and dividends receivable.
Coursera, Inc. [Member]
Enjoy Technology, Inc [Member]
Convertible Promissory Note [Member]
SPBRX Inc [Member]
Accumulated net investment loss.
Accumulated net realized gain on investments, net of distributions.
Accumulated net unrealized (depreciation) appreciation of investments.
4.75% Convertible Senior Notes due 2023 [Member]
Redeemed aggregate principal amount.
Type of arrangement axis.
At-the-Market Sales Agreement [Member]
Percentage of sales price.
Debt instrument axis.
Income (Loss) from continuing operations diluted.
Adjustment for interest and amortization.
Net change in net assets aesulting from operations as adjusted diluted.
Adjustment for dilutive effect.
Director fees.
Non-Binding Investment Agreement [Member]
Change in Unrealized Appreciation Depreciation of Investments [Abstract]
Investment net assets from operations increase decrease.
OneValley, Inc. [Member]
Non-Controlled Affiliate Investments [Member]
Investment company, unrealized investment income (loss) from operations, per share.
Investment company Issuance of common stock from stock dividend.
Investment company issuance offering per share.
Investment company conversion unit per share.
Investment company repurchase per share.
Investment company share based compensation arrangement by share based payment.
Market value, value per share.
Investment company total return based on market value.
Average net asset.
Investment company turnover ratio after incentive allocation.
6.00% Notes due 2026 [Member]
Closing market price, per note
Dividends declared.
Debt instrument redemption date description.
Debt instrument, redemption amount, per convertible note
Series B Preferred Stock Eight Percentage [Member]
Derivative Security [Member]
Preferred Shares, Series A 6% [Member]
Preferred Shares, Series Seed 6% [Member]
Investment company capital share transactions.
Preferred Warrant Series B [Member]
OneValley, Inc. (f/k/a NestGSV, Inc.) [Member]
Preferred Warrant Series B Expiration On Two Thousand And Twenty Two [Member]
Preferred Warrant Series B Expiration On Two Thousand And Twenty Three [Member]
One Valley Inc Next GSV Inc [Member]
Digital Media Platform [Member]
Preferred shares, Series C-2 6% [Member]
Curious.Com Inc [Member]
Preferred shares, Series B 6% [Member]
Controlled [Member]
Membership Interest [Member]
Preferred Shares, Series D 8% [Member]
Interactive Learning [Member]
Class B Units [Member]
Class W Units [Member]
Maven Reseach Inc [Member]
Preferred Shares, Series C 8% [Member]
Membership Interest in Lending SPV [Member]
SPBRX, INC. (f/k/a GSV Sustainability Partners, Inc.) [Member]
Preferred Shares, Series B 8% [Member]
Portfolio Investments [Member]
Preferred Shares, Series A 8% [Member]
Global Innovation Platform [Member]
Preferred Warrant Series B Stock [Member]
Stock repurchased for capital share activity.
CUX Inc [Member]
Online Education [Member]
Non-Qualifying Assets [Member]
Convertible Preferred Shares Series D [Member]
Corporate Education [Member]
Convertible Preferred Shares Series C [Member]
Realized investment gain (losses).
Amortization of discount on convertible senior notes.
Adjustments to escrow proceeds receivable.
Forfeited interest on convertible senior notes.
Purchases of Investments [Abstract]
Purchases of portfolio investments.
Proceeds from sales or maturity of investments [Abstract]
Proceeds from sales or maturity of investments portfolio investments.
Proceeds from sales or maturity of investments U.S. Treasury Bills.
4.75% Convertible Senior Notes [Member]
Increase decrease in proceeds receivable.
Increase decrease in escrow proceeds receivable.
Increase decrease in deposit.
Increase decrease in payable for securities purchased.
Repayments of redemption of convertible senior notes.
Debt instrument redemption amount.
Preferred Warrants Series B [Member]
Cash paid for fractional shares.
Debt conversion convertible amount.
Debt redemption convertible amount.
Direct deduction of deferred debt issuance costs.
Line of credit minimum maintain balance.
5.25% Convertible Senior Notes due 2018 [Member]
Western Alliance Bank [Member]
Line of credit maturity date.
6.00% Notes [Member]
True Global Ventures 4 Plus Fund LP [Member]
Capital commitment.
Remaining common stock issued.
Palantir Lending Trust SPV I [Member]
Rover Inc [Member]
Proceeds from investment.
Clever Inc [Member]
Forge Global, Inc.[Member]
Number of warrants converted to common stock.
Convertible Promissory Note 8% Due On TwoThousandTwentyFour [Member]
Preferred Warrant Series A-3 [Member]
Preferred Warrant Series A Four [Member]
Preferred Warrant Series A Four One [Member]
Sec 6.00 Notes Due2026 [Member]
Common Stock Par Value0.01 Per Share [Member]
Schedule of Subsidiaries of Company [Table Text Block]
Uncertainties and Risk Factors [Policy Text Block]
Schedule of Deferred Financing Costs [Table Text Block]
Investment Transaction Costs and Escrow Deposits [Policy Text Block]
Unrealized Appreciation or Depreciation of Investments [Policy Text Block]
Non-Controlled/Non-Affliate Investments [Member]
Non-Controlled/Affliate Investments [Member]
Treasurybills [Member]
Modification of Dutch Auction Tender Offer and Cash Dividends [Member]
Date of Initial Investment.
Fair value measurement with unobservable inputs reconciliation recurring basis asset exercises and conversions.
Preferred shares, Series C 8% [Member]
Blink Health Inc [Member]
Aspiration Partners, Inc. [Member]
Preferred shares, Series C-3 [Member]
Orchard Technologies, Inc. [Member]
Simple Agreement For Future Equity [Member]
Whoop, Inc. [Member]
Forge Global Holdings, Inc. [Member]
Common Shares Class AA [Member]
Junior Preferred Shares [Member]
Preferred shares, Series B-1 [Member]
Preferred shares, Series B-2 [Member]
Convertible Note Zero Point Five Percentage Due Two Thousand Twenty Four [Member]
Nextdoor Holdings, Inc. [Member]
NewLake Capital Partners, Inc. [Member]
Trax Ltd. [Member]
Preferred Stock Investec Series [Member]
Preferred Shares Investec Series [Member]
Varo Money Inc [Member]
Residential Homes for Rent, LLC [Member]
Term Loan Fifteen Percentage Due Two Thousand Twenty Three [Member]
Rover Group, Inc. [Member]
True Global Ventures 4 Plus Pte Ltd [Member]
Limited Partner Fund Investment [Member]
Preferred Shares Series B One [Member]
PayJoy, Inc. [Member]
Preferred Shares Series B Two [Member]
Neutron Holdings, Inc. [Member]
Junior Preferred Shares Series One D [Member]
Maven Research Inc [Member]
Knowledge Networks [Member]
Term Loan Due [Member]
Aventine Property Group, Inc.[Member]
Rent the Runway, Inc. [Member]
Commercial Streaming Solutions Inc. [Member]
Commercial Streaming Solutions Inc [Member]
Rebric, Inc. [Member]
Preferred Shares Series Seed Four [Member]
Preferred Stock Series Seed Four [Member]
Palantir Lending Trust SPV One [Member]
X group Holdings Limited [Member]
Convertible Note Six Percentage Due On Two Thousand Twenty Three [Member]
Rent Runway Inc [Member]
EDGE Markets, Inc. [Member]
Preferred Stock, Series Seed [Member]
YouBet Technology, Inc. [Member]
Preferred Stock Series Seed Two [Member]
Preferred Shares Series Seed Two [Member]
Kahoot ASA [Member]
Churchill Sponsor Seven LLC [Member]
Common Share Units [Member]
Warrant Units [Member]
Share Units [Member]
Junior Preferred Stock Series Done [Member]
Churchill Sponsor Six LLC [Member]
Junior Preferred Convertible Note Four Percentage Due Two Thousand Twenty Seven [Member]
Fullbridge, Inc. [Member]
Common Warrants Strike Price Zero Point Zero One Expiration Two Thousand Twenty Seven [Member]
Ozy Media, Inc. [Member]
Preferred Shares, Series C-2 6% [Member]
Treehouse Real Estate Investment Trust, Inc. [Member]
Promissory Note 1.47% [Member]
Kinetiq Holdings LLC [Member]
Preferred Shares, Series B Six Percentage [Member]
Stock issued during period values share based compensation gross.
Non-Controlled Affiliate [Member]
StormWind, LLC [Member]
Preferred Shares Series D Eight Percentage [Member]
Series D Preferred Stock Eight Percentage [Member]
Preferred Shares Series C Eight Percentage [Member]
Preferred Shares Series B Eight Percentage [Member]
Preferred Shares Series A Eight Percentage [Member]
Series C Two Preferred Stock Six Percentage [Member]
Series B Preferred Stock Six Percentage [Member]
Series A Preferred Stock Six Percentage [Member]
Series B Preferred Stock Seed Six Percentage [Member]
Preferred Shares Series A Six Percentage [Member]
Preferred Shares Series Seed Six Percentage [Member]
Preferred Shares Series B Five Percentage [Member]
Schedule of Investments in and Advanced to Affiliates Schedule of Investments [Table Text Block]
New Lake Capital Partners Inc fka Green Acreage Real Estate Corp [Member]
Cannabis REIT [Member]
Stock Ownership Percentage.
Share-based compensation arrangement by share-based payment award options forfeitures in period date.
Share-based compensation arrangement by share-based payment award options vested and exercisable weighted average grant date fair value.
Amended and Restated 2019 Equity Incentive Plan [Member]
Stock issued during period shares restricted stock award value.
Non Employee Director [Member]
Restricted Shares of Common Stock [Member]
Share-based compensation arrangement by share-based payment award options grants in period value.
2020 Non-employee Director [Member]
2021 Non-employee Director [Member]
Restricted Share Grants [Member]
Share based compensation arrangement by share based payment award other than options vested and expected to vest outstanding number.
Non-binding Investment.
Valuation technique and input description.
DLOM [Member].
Unobservation input description.
Preferred Warrants [Member].
Equity Participation In Underlying Collatera [Member]
Strom Wind LLC [Member]
Purchases of US Treasury Bills Investments.
U S. Treasury Bill [Member]
Non-Portfolio Investments [Member]
Convertible Promissory Note 8% Due 8/23/2024 [Member]
Measurement Input Liquidation Value [Member].
Preferred Warrant Series A Four Two [Member]
Preferred shares, Series C-2 6% [Member] [Default Label]
Preferred shares, Series B 6% [Member] [Default Label]
Membership Interest in Lending SPV [Member] [Default Label]
4.75% Convertible Senior Notes due 2023 [Member] [Default Label]
Assets
Liabilities
Net Assets
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest
Investment Income, Net
Operating Expenses
InvestmentCompanyDividendDeclared
Shares Issued, Value, Share-Based Payment Arrangement, before Forfeiture
Shares, Outstanding
RealizedInvestmentGainLosses
Share-Based Payment Arrangement, Noncash Expense
PurchasesOfPortfolioInvestments
PurchasesOfUSTreasuryBillsInvestments
Increase (Decrease) in Prepaid Expense and Other Assets
Increase (Decrease) in Interest and Dividends Receivable
IncreaseDecreaseInProceedsReceivable
IncreaseDecreaseInEscrowProceedsReceivable
Increase (Decrease) in Accounts Payable and Accrued Liabilities
Increase (Decrease) in Interest Payable, Net
Net Cash Provided by (Used in) Operating Activities
RepaymentsOfRedemptionOfConvertibleSeniorNotes
CashPaidForFractionalShares
Payments of Financing Costs
Net Cash Provided by (Used in) Financing Activities
Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect
Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations
Schedule of Investments in and Advances to Affiliates, Schedule of Investments [Table Text Block]
Debt Issuance Costs, Current, Net
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3
Investments in and Advances to Affiliates, at Fair Value
Investments in and Advances to Affiliates, at Fair Value, Gross Reductions
Investments in and Advances to Affiliates, Balance, Principal Amount
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent
IncomeLossFromContinuingOperationsDiluted
Lessee, Operating Lease, Liability, to be Paid
Investment Company, Gain (Loss) on Investment, Per Share
Investment Company, Distribution to Shareholders, Per Share
InvestmentCompanyIssuanceOfCommonStockFromStockDividend
InvestmentCompanyIssuanceOfferingPerShare
InvestmentCompanyConversionUnitPerShare
InvestmentCompanyShareBasedCompensationArrangementByShareBasedPayment
MarketValueValuePerShare
DebtConversionConvertibleAmount
Convertible Debt
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price
Share-Based Compensation Arrangement by Share-Based Payment Award, Option, Nonvested, Weighted Average Exercise Price
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value