SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Significant Accounting Policies [Text Block] Loans with fair value classified as non-accrual Investment Owned, At Fair Value, Non-Accrual Investment Owned, At Fair Value, Non-Accrual Statistical Measurement [Domain] Statistical Measurement [Domain] Award Timing Predetermined Award Timing Predetermined [Flag] Loan Agreement, Third Amendment Loan Agreement, Third Amendment [Member] Loan Agreement, Third Amendment Asset Class [Axis] Asset Class [Axis] Securities Act File Number Securities Act File Number Additional Paid-in Capital Additional Paid-in Capital [Member] Valuation Approach and Technique [Domain] Valuation Approach and Technique [Domain] Payments of bank facility fees and costs Payments of Financing Costs Year 6 Management Fee, Period Six [Member] Management Fee, Period Six Tabular List, Table Tabular List [Table Text Block] Net realized and change in unrealized loss from loans and derivative instruments (in dollars per share) Investment Company, Gain (Loss) on Investment, Per Share Schedule of Distributions of Capital Stock Dividends Declared [Table Text Block] Recent Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Safe Securities Inc. Safe Securities Inc. [Member] Safe Securities Inc. Schedule of Management Fees Schedule of Related Party Transactions [Table Text Block] Secured Overnight Financing Rate (SOFR) Secured Overnight Financing Rate (SOFR) [Member] Probability weighting of alternative outcomes Measurement Input, Probability Weighing Of Alternative Outcomes [Member] Measurement Input, Probability Weighing Of Alternative Outcomes Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Net increase (decrease) in net assets resulting from operations per share, basic (in dollars per share) Earnings Per Share, Basic Adjustment to Compensation: Adjustment to Compensation [Axis] MANAGEMENT FEE AND RELATED PARTIES Related Party Transactions Disclosure [Text Block] Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Stocks Stocks [Member] Stocks Distributions in excess of net investment income Investment Company, Distributable Earnings (Loss), Accumulated Ordinary Income (Loss) Schedule of Cash and Cash Equivalents Schedule of Cash and Cash Equivalents [Table Text Block] Measurement Input Type [Domain] Measurement Input Type [Domain] Adjustment to Compensation, Amount Adjustment to Compensation Amount Net change in unrealized loss from loans relating to loans still held Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss) Investment Company, Regulated Status [true false] Investment Company, Regulated Status [true false] Net decrease in other assets Increase (Decrease) in Other Operating Assets Creoate Limited Creoate Limited [Member] Creoate Limited Employee Stock Option Share-Based Payment Arrangement, Option [Member] Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Cash and Cash Equivalents Cash and Cash Equivalents, Policy [Policy Text Block] Net realized loss from loans Net realized loss from loans Debt and Equity Securities, Realized Gain (Loss) NET ASSETS: Net assets (equivalent to $814.75 and $1,193.46 per share based on 100,000 shares of capital stock outstanding - see Note 5 and Note 12) Beginning balance Ending balance Net assets, end of year Equity, Attributable to Parent Ordinary income Investment Company, Distribution, Ordinary Income Insider Trading Policies and Procedures [Line Items] Shares authorized (in shares) Common Stock, Shares Authorized Net increase (decrease) in net assets resulting from operations (in dollars per share) Investment Company, Investment Income (Loss) from Operations, Per Share ASSETS: Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] Quarterly reduction in commitments, percentage Line of Credit Facility, Maximum Borrowing Capacity, Quarterly Reduction In Commitments, Percentage Line of Credit Facility, Maximum Borrowing Capacity, Quarterly Reduction In Commitments, Percentage Percent of Net Assets Money Market Funds, Percent Of Net Assets Money Market Funds, Percent Of Net Assets Cover [Abstract] Maximum Maximum Maximum [Member] Accounting Policies [Abstract] Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Debt Instrument [Line Items] Debt Instrument [Line Items] Investment, Identifier [Axis] Investment, Identifier [Axis] Dividends Payable [Line Items] Dividends Payable [Line Items] Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Pay vs Performance Disclosure [Line Items] Loans, at estimated fair value (amortized cost of $117,618,886 and $194,533,292, respectively) Fair Value Loans Investment Owned, Fair Value Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount LIABILITIES: Liabilities [Abstract] Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] Entity Shell Company Entity Shell Company Average debt outstanding Long-Term Debt, Average Amount Outstanding Accounts payable and other accrued liabilities Accounts Payable and Other Accrued Liabilities Schedule of Long-Term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Cash and cash equivalents, percentage of net assets Cash And Cash Equivalents, Percentage Of Net Assets Cash And Cash Equivalents, Percentage Of Net Assets Platform Science, Inc. Subtotal Platform Science, Inc. [Member] Platform Science, Inc. Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Statement of Stockholders' Equity [Abstract] Net decrease in dividend and interest receivables Increase (Decrease) in Interest and Dividends Receivable Statement of Cash Flows [Abstract] Company Selected Measure Amount Company Selected Measure Amount Cash Cash Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Measurement Input Type [Axis] Measurement Input Type [Axis] Name Measure Name Management fees Management Fee Expense Number of financial institutions Number Of Financial Institutions Number Of Financial Institutions Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Table] Consolidation, Less-than-Wholly-Owned Subsidiary, Parent Ownership Interest, Effect of Change [Table] Document Fiscal Period Focus Document Fiscal Period Focus Loan Agreement Loan Agreement [Member] Loan Agreement Award Timing Method Award Timing Method [Text Block] Award Type Award Type [Axis] Legal Entity [Axis] Legal Entity [Axis] Total assets Assets Tax Status Income Tax, Policy [Policy Text Block] Entity Address, City or Town Entity Address, City or Town CASH FLOWS FROM OPERATING ACTIVITIES: Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Valuation, Most Advantageous Market Analysis and Asset Recovery Valuation, Most Advantageous Market Analysis And Asset Recovery [Member] Valuation, Most Advantageous Market Analysis And Asset Recovery Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Statement of Income Location, Balance [Domain] Statement of Income Location, Balance [Domain] Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Entity Emerging Growth Company Entity Emerging Growth Company Warrants Warrant [Member] Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Principal Investment Owned, Balance, Principal Amount Grokker, Inc. Grokker, Inc. [Member] Grokker, Inc. Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year [Member] Level 2 Fair Value, Inputs, Level 2 [Member] Document Financial Statement Error Correction Document Financial Statement Error Correction [Flag] Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Year 5 Management Fee, Period Five [Member] Management Fee, Period Five Bank fees and other costs Debt Instrument, Fee Amount Shares outstanding (in shares) Beginning balance (in shares) Ending balance (in shares) Common Stock, Shares, Outstanding Audit Information [Abstract] Audit Information PEO PEO [Member] PlantBaby, Inc. Subtotal PlantBaby, inc. [Member] PlantBaby, inc. Commitment Fees Commitment Fees, Policy [Policy Text Block] Commitment Fees, Policy Change in operating assets and liabilities: Increase (Decrease) In Operating Assets And Liabilities [Abstract] Increase (Decrease) In Operating Assets And Liabilities Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year [Member] Derivative Instruments and Hedging Activities Disclosure [Abstract] Performing Loans Performing Loans [Member] Performing Loans Entity Address, Postal Zip Code Entity Address, Postal Zip Code Restatement Determination Date Restatement Determination Date Beginning of year End of year Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Income Statement [Abstract] Basis spread on variable rate Debt Instrument, Basis Spread on Variable Rate Other assets Other Assets Beginning balance Ending balance Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value Origination of loans Payment for Purchase, Investment, Operating Activity Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Proto, Inc. Subtotal Proto, Inc. [Member] Proto, Inc. Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Total return Investment Company, Total Return Unrealized loss Investment, Tax Basis, Unrealized Loss Net investment income Net Investment Income Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Venture Lending & Leasing IX, Inc. Venture Lending & Leasing IX, Inc. [Member] Venture Lending & Leasing IX, Inc. Organization, Consolidation and Presentation of Financial Statements [Abstract] Return of Capital Distributions Cumulative Return Of Capital Distributions [Member] Cumulative Return Of Capital Distributions Distributions of income to shareholder Investment Company, Dividend Distribution Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Receipt of equity securities as repayment of loans Investment Company, Paid In Kind Equity Securities Repayment Of Loans During Noncash Transaction Investment Company, Paid In Kind Equity Securities Repayment Of Loans During Noncash Transaction Title of 12(g) Security Title of 12(g) Security City Area Code City Area Code Percent of assets Investment Owned, Percent Of Assets Investment Owned, Percent Of Assets Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] All Trading Arrangements All Trading Arrangements [Member] Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] Commitments and Contingencies Disclosure [Abstract] Borrowings under debt facility Proceeds from Long-Term Lines of Credit Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Net cash provided by operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Related Party Transactions [Abstract] Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] PEO Total Compensation Amount PEO Total Compensation Amount Long-Term Debt, Type [Axis] Long-Term Debt, Type [Axis] Other temporary differences Investment Company, Distributable Earnings (Loss), Accumulated Temporary Difference, Other Most advantageous market effective yield rate Measurement Input, Most Advantageous Market Effective Yield Rate [Member] Measurement Input, Most Advantageous Market Effective Yield Rate Equity Components [Axis] Equity Components [Axis] Auditor Name Auditor Name Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Total distributions to shareholder Investment Company, Dividend Distribution And Return Of Capital Distribution Investment Company, Dividend Distribution And Return Of Capital Distribution Number of reportable segments Number of Reportable Segments Schedule of Financial Highlights Investment Company, Financial Highlights [Table Text Block] Interest period (in months) Debt Instrument, Basis Spread On Variable Rate, Interest Period Debt Instrument, Basis Spread On Variable Rate, Interest Period Average duration of warrant (in years) Warrants and Rights Outstanding, Term SUPPLEMENTAL DISCLOSURES: Supplemental Cash Flow Information [Abstract] Other Performance Measure, Amount Other Performance Measure, Amount Number of Shares (in shares) Money Market Funds, Balance, Shares Money Market Funds, Balance, Shares Entity Address, State or Province Entity Address, State or Province Net investment income Investment Company, Investment Income (Loss) Ratio Cost Investment, Tax Basis, Cost Investment Company, Net Assets [Roll Forward] Investment Company, Net Assets [Roll Forward] Derivative Instrument [Axis] Derivative Instrument [Axis] Individual: Individual [Axis] Investment Valuation Fair Value of Financial Instruments, Policy [Policy Text Block] Document Annual Report Document Annual Report Capital paid in on shares of capital stock Additional Paid in Capital, Common Stock Entity [Domain] Entity [Domain] Axiado Corporation Subtotal Axiado Corporation [Member] Axiado Corporation Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table [Member] Convertible Notes and Others Convertible Notes [Member] Convertible Notes Interest - Debt facility Interest Paid, Excluding Capitalized Interest, Operating Activity Document Fiscal Year Focus Document Fiscal Year Focus Basis of Accounting Basis of Accounting, Policy [Policy Text Block] Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Weighted-Average Interest Rate – Cash Investment, Interest Rate During Period, Paid In Cash Investment, Interest Rate During Period, Paid In Cash Entity Interactive Data Current Entity Interactive Data Current Investment Company, Accounting and Reporting under Topic 946 [true false] Investment Company, Accounting and Reporting under Topic 946 [true false] Committed capital Investment Company, Committed Capital Net change in unrealized loss from loans Debt And Equity Securities, Unrealized Gain (Loss) [Member] Debt And Equity Securities, Unrealized Gain (Loss) Net decrease in accounts payable, other accrued liabilities and accrued management fees Increase (Decrease) in Operating Liabilities Accumulated capital losses Investment Company, Distributable Earnings (Loss), Accumulated Capital Loss Carryforward Equity [Abstract] Derivative Instruments Derivatives, Policy [Policy Text Block] SEGMENT INFORMATION Segment Reporting Disclosure [Text Block] Amortized cost Amortized Cost Investment Owned, Cost Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Net realized gain from derivative instruments Net realized gain from derivative instruments Net realized gain from derivative instruments Gain (Loss) on Sale of Derivatives Ownership [Domain] Ownership [Domain] Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] Fair Value, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Weighted Average Weighted Average [Member] Medical Devices Medical Devices Loan Investments, Medical Devices [Member] Loan Investments, Medical Devices Net assets per share (in dollars per share) Net asset value, beginning of year (in dollars per share) Net asset value, end of year (in dollars per share) Net Asset Value Per Share Entity CIK Entity Central Index Key Weighted-Average Interest Rate Investment, Interest Rate During Period Investment, Interest Rate During Period PEO Name PEO Name Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year [Member] Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Revolving Credit Facility Revolving Credit Facility [Member] Investment Company, Distribution Type [Domain] Investment Company, Distribution Type [Domain] Investment Company, Distribution Type [Domain] Arrangement Duration Trading Arrangement Duration Investment, Issuer Name [Domain] Investment, Issuer Name [Domain] Exercise Price Award Exercise Price Entity Filer Category Entity Filer Category Local Phone Number Local Phone Number Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Canopy Technology Corp. Subtotal Canopy Technology Corp. [Member] Canopy Technology Corp. ASSETS: Assets [Abstract] Credit Facility [Axis] Credit Facility [Axis] Underlying Security Market Price Change Underlying Security Market Price Change, Percent Debt Instrument [Axis] Debt Instrument [Axis] Return of capital to shareholder Return of capital Investment Company, Tax Return of Capital Distribution Interest on Loans Revenue Recognition, Interest [Policy Text Block] FAIR VALUE DISCLOSURES Fair Value Disclosures [Text Block] Credit Facility [Domain] Credit Facility [Domain] Net change in unrealized gain (loss) from loans Net change in unrealized (gain) loss from loans Debt and Equity Securities, Unrealized Gain (Loss) Analysis of Net Assets: Equity, Attributable to Parent [Abstract] Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year [Member] Loans with costs basis classified as non-accrual Investment Owned, At Cost, Non-Accrual Investment Owned, At Cost, Non-Accrual Percent of Net Assets Investment Owned, Net Assets, Percentage Entity Address, Address Line One Entity Address, Address Line One Entity Address, Address Line Two Entity Address, Address Line Two Unrealized gain Investment, Tax Basis, Unrealized Gain Investments [Domain] Investments [Domain] Entity Voluntary Filers Entity Voluntary Filers Ownership [Axis] Ownership [Axis] DERIVATIVE INSTRUMENTS Derivative Instruments and Hedging Activities Disclosure [Text Block] Accrued management fees Management Fee Payable Investment Company [Abstract] FINANCIAL HIGHLIGHTS Investment Company, Financial Highlights [Text Block] Fair Value as of Grant Date Award Grant Date Fair Value Entity Registrant Name Entity Registrant Name Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Operating loss carryforwards Operating Loss Carryforwards Most advantageous market analysis Valuation, Most Advantageous Market Analysis [Member] Valuation, Most Advantageous Market Analysis Related Party Transaction [Line Items] Related Party Transaction [Line Items] Year 9 Management Fee, Period Nine [Member] Management Fee, Period Nine Total Assets, Fair Value Disclosure Schedule of Fair Value Measurement Inputs and Valuation Techniques Fair Value Measurement Inputs and Valuation Techniques [Table Text Block] Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] Contributed capital to shareholder Investment Company, Accumulated Contributed Capital Investment Company, Accumulated Contributed Capital Counterparty Name [Domain] Counterparty Name [Domain] Number of operating segments Number of Operating Segments Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Investment Type [Axis] Investment Type [Axis] Title Trading Arrangement, Individual Title Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Security Security Loan Investments, Security [Member] Loan Investments, Security Repayments of borrowings under debt facility Repayments of Long-Term Lines of Credit Restatement Determination Date: Restatement Determination Date [Axis] Non-PEO NEO Non-PEO NEO [Member] Net realized and change in unrealized loss from loans and derivative instruments Gain (Loss), Investment and Derivative, Operating, and Foreign Currency Transaction, after Tax Interest expense Interest Expense, Debt Venture Lending & Leasing IX, LLC Venture Lending & Leasing IX, LLC [Member] Venture Lending & Leasing IX, LLC Name Trading Arrangement, Individual Name All Award Types Award Type [Domain] Enterprise Networking Enterprise Networking Loan Investments, Enterprise Networking [Member] Loan Investments, Enterprise Networking Equity Awards Adjustments Equity Awards Adjustments [Member] Schedule of Components of Total Distributions on a Tax Basis Investment Company, Components Of Distributable Earnings (Accumulated Losses) [Table Text Block] Investment Company, Components Of Distributable Earnings (Accumulated Losses) [Table Text Block] Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] Other income Other Income Compensation Amount Outstanding Recovery Compensation Amount Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Loan Agreement, First Amendment Loan Agreement, First Amendment [Member] Loan Agreement, First Amendment Schedule of Investments [Line Items] Schedule of Investments [Line Items] MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Name Awards Close in Time to MNPI Disclosures, Individual Name Common Sun, Inc Common Sun, Inc [Member] Common Sun, Inc Software Software Loan Investments, Software [Member] Loan Investments, Software Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Distribution Type [Axis] Distribution Type [Axis] ICFR Auditor Attestation Flag ICFR Auditor Attestation Flag INVESTMENT INCOME: Revenues [Abstract] Documents Incorporated by Reference Documents Incorporated by Reference [Text Block] Net realized loss from loans Debt And Equity Securities, Realized Gain (Loss) [Member] Debt And Equity Securities, Realized Gain (Loss) Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] Vinvesto, Inc. Subtotal Vinvesto, Inc. [Member] Vinvesto, Inc. Management Fee, Period [Axis] Management Fee, Period [Axis] Management Fee, Period Financial Instruments [Domain] Financial Instruments [Domain] Percentage of maximum amount available Line Of Credit Facility, Maximum Amount Available, Percentage Threshold For Commitment Fee Line Of Credit Facility, Maximum Amount Available, Percentage Threshold For Commitment Fee Auditor Firm ID Auditor Firm ID Acquisitions and originations Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases Statement of Income Location, Balance [Axis] Statement of Income Location, Balance [Axis] Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Ratios to average net assets: Investment Company, Financial Ratios [Abstract] Minimum Minimum Minimum [Member] Year 7 Management Fee, Period Seven [Member] Management Fee, Period Seven Zimeno Inc. Zimeno Inc. [Member] Zimeno Inc. Earnings per Share Earnings Per Share, Policy [Policy Text Block] Company Selected Measure Name Company Selected Measure Name DEBT FACILITY Debt Disclosure [Text Block] Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Portfolio turn-over rate Investment Company, Portfolio Turnover Ownership percentage Limited Liability Company (LLC) or Limited Partnership (LP), Managing Member or General Partner, Ownership Interest Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Principal payments on loans, net of accretion Proceeds from Disposition of Investment, Operating Activity All Executive Categories All Executive Categories [Member] CONTINGENCIES Commitments and Contingencies Disclosure [Text Block] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Juvo Mobile, Inc. Juvo Mobile, Inc. [Member] Juvo Mobile, Inc. Weighted average shares outstanding, diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Segment Reporting Segment Reporting, Policy [Policy Text Block] Logistech Solutions Pte. Ltd. Logistech Solutions Pte. Ltd. [Member] Logistech Solutions Pte. Ltd. Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Other Healthcare Other Healthcare Loan Investments, Other Healthcare [Member] Loan Investments, Other Healthcare Derivative [Table] Derivative [Table] Asset coverage ratio Investment Company, Senior Security, Indebtedness, Asset Coverage Ratio Julie Products Inc. Subtotal Julie Products Inc. [Member] Julie Products Inc. Entity Small Business Entity Small Business Total Distributable Losses Distributable Income (Loss) [Member] Distributable Income (Loss) Income Tax Disclosure [Abstract] Higher Ground Education, Inc. Higher Ground Education, Inc. [Member] Higher Ground Education, Inc. Other operating expenses Other Cost and Expense, Operating Measurement input Investment Company, Investment Owned, Measurement Input Document Transition Report Document Transition Report Underlying Securities Award Underlying Securities Amount Equity Component [Domain] Equity Component [Domain] Document Period End Date Document Period End Date PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount TAX STATUS Income Tax Disclosure [Text Block] Schedule of Weighted Average Interest Rate of Performing and All Loans Schedule Of Investment Weighted Average Interest Rate [Table Text Block] Schedule Of Investment Weighted Average Interest Rate Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Schedule of Investments [Table] Schedule of Investments [Table] Cash, uninsured amount Cash, Uninsured Amount Fair Value Cash equivalents Money Market Funds, Fair Value Disclosure Money Market Funds, Fair Value Disclosure Debt covenants, threshold outstanding principal balance Debt Covenants, Threshold Outstanding Principal Balance Debt Covenants, Threshold Outstanding Principal Balance Document Type Document Type Level 3 Fair Value, Inputs, Level 3 [Member] EARNINGS PER SHARE Earnings Per Share [Text Block] Name Outstanding Recovery, Individual Name Derivative Contract [Domain] Derivative Contract [Domain] Proceeds from purchase of shares Proceeds from Issuance of Common Stock All Individuals All Individuals [Member] Long-Term Debt, Type [Domain] Long-Term Debt, Type [Domain] Investment Company, Distribution Type [Axis] Investment Company, Distribution Type [Axis] Investment Company, Distribution Type Fair Value Disclosures [Abstract] Asset Recovery Valuation, Asset Recovery [Member] Valuation, Asset Recovery Wireless Wireless Loan Investments, Wireless [Member] Loan Investments, Wireless Name Forgone Recovery, Individual Name Distributions of income to shareholder (in dollars per share) Investment Company, Distribution to Shareholders, Per Share Unrealized appreciation (depreciation) Investment, Tax Basis, Unrealized Gain (Loss) Proceeds from sale of loans Proceeds from Sale, Loan, Held-for-Sale Net change in unrealized loss from derivative instruments Net change in unrealized loss from derivative instruments Unrealized gains or losses Net change in unrealized loss from derivative instruments Unrealized Gain (Loss) on Derivatives Statistical Measurement [Axis] Statistical Measurement [Axis] Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested [Member] Year 1 Management Fee, Period One [Member] Management Fee, Period One Commitment fee Line of Credit Facility, Unused Capacity, Commitment Fee Percentage CASH AND CASH EQUIVALENTS: Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation [Abstract] Fair Value Measurement Inputs and Valuation Techniques [Line Items] Fair Value Measurement Inputs and Valuation Techniques [Line Items] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Weighted Average Interest Rate – Non-Cash Investment, Interest Rate During Period, Paid In Kind Investment, Interest Rate During Period, Paid In Kind Computers & Storage Computers & Storage Loan Investments, Computers And Storage [Member] Loan Investments, Computers And Storage SF Insuretech, Inc. SF Insuretech, Inc. [Member] SF Insuretech, Inc. Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Year 3 Management Fee, Period Three [Member] Management Fee, Period Three Schedule of Effect of Derivative Instruments on Statements of Operations Derivative Instruments, Gain (Loss) [Table Text Block] Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Level 1 Fair Value, Inputs, Level 1 [Member] Borrowings under debt facility Long-Term Line of Credit Number of loans within the industry Investment Owned, Number Of Loans Within Industry Investment Owned, Number Of Loans Within Industry Distributions of securities Equity Dividend Distribution [Member] Equity Dividend Distribution Related Party Transaction [Table] Related Party Transaction [Table] Net increase (decrease) in net assets resulting from operations per share, diluted (in dollars per share) Earnings Per Share, Diluted Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Interest on loans Interest Income, Operating Internet Internet Loan Investments, Internet [Member] Loan Investments, Internet Realized Gains and Losses from Loans Realized Gains (Losses) From Loans, Policy [Policy Text Block] Realized Gains (Losses) From Loans, Policy Number of shares issued in sale (in shares) Sale of Stock, Number of Shares Issued in Transaction Amounts per common share: Earnings Per Share [Abstract] NON-CASH OPERATING AND FINANCING ACTIVITIES: Noncash Operating And Financing Items [Abstract] Noncash Operating And Financing Items Auditor Location Auditor Location Supplant, Inc. Supplant, Inc. [Member] Supplant, Inc. Management Fee Management fee rate Management and Service Fees, Rate Form Remodel, Inc. Form Remodel, Inc. [Member] Form Remodel, Inc. Cost Money market mutual funds Money Market Funds, at Carrying Value Cash distributions Cash Dividend Distribution [Member] Cash Dividend Distribution Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Award Timing Disclosures [Line Items] Entity Well-known Seasoned Issuer Entity Well-known Seasoned Issuer CAPITAL STOCK Equity [Text Block] Adjustments to reconcile net increase (decrease) in net assets resulting from operations to net cash provided by operating activities: Adjustments To Reconcile Net Assets From Operations To Cash Provided By (Used In) Operating Activities [Abstract] Adjustments To Reconcile Net Assets From Operations To Cash Provided By (Used In) Operating Activities Interest rate collar Interest Rate Collar [Member] Interest Rate Collar Net increase (decrease) in net assets resulting from operations Net increase (decrease) in net assets resulting from operations Net Income (Loss) Attributable to Parent Expiration Date Trading Arrangement Expiration Date Net investment income (in dollars per share) Investment Company, Investment Income (Loss), Per Share, Basic Acquisition of equity securities Interest Income, Operating, Paid in Kind Adoption Date Trading Arrangement Adoption Date Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Entity Current Reporting Status Entity Current Reporting Status Derivative [Line Items] Derivative [Line Items] Interest Rate Investment Interest Rate Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Line of Credit Line of Credit [Member] Other Assets and Liabilities Other Assets And Liabilities, Policy [Policy Text Block] Other Assets And Liabilities, Policy Total distributions Total distributions Retained Earnings (Accumulated Deficit) Return of capital to shareholder (in dollars per share) Investment Company, Tax Return of Capital Distribution, Per Share Loans Loans Loans [Member] Expenses Investment Company, Expense Ratio, after Fee Waiver and Incentive Fee Deduction Financial Instrument [Axis] Financial Instrument [Axis] Statement of Financial Position [Abstract] Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested [Member] Executive Category: Executive Category [Axis] Technology Services Technology Services Loan Investments, Technology Services [Member] Loan Investments, Technology Services CASH PAID DURING THE YEAR: Cash, Cash Equivalents, Restricted Cash, And Restricted Cash Equivalents, Paid During Period [Abstract] Cash, Cash Equivalents, Restricted Cash, And Restricted Cash Equivalents, Paid During Period Current Fiscal Year End Date Current Fiscal Year End Date Other Technology Other Technology Loan Investments, Other Technology [Member] Loan Investments, Other Technology Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table [Member] Banking and professional fees Professional Fees Statement [Table] Statement [Table] CASH FLOWS FROM FINANCING ACTIVITIES: Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] Payments received from derivative instruments Proceeds from Derivative Instrument, Financing Activities Variable Rate [Domain] Variable Rate [Domain] Schedule of Assets and Liabilities Measured at Fair Value on Recurring Basis Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] ORGANIZATION AND OPERATIONS OF THE FUND Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Unrecognized tax benefits Unrecognized Tax Benefits Distributions of equity securities to shareholder Warrant Issued Warrant Issued Schedule of Changes in Level 3 Assets Measured at Fair Value on Recurring Basis Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] All Adjustments to Compensation All Adjustments to Compensation [Member] Amendment Flag Amendment Flag Unamortized fees and costs Debt Issuance Costs, Line of Credit Arrangements, Net Termination Date Trading Arrangement Termination Date Net cash used in financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Measure: Measure [Axis] Valuation Approach and Technique [Axis] Valuation Approach and Technique [Axis] Vesta Housing, Inc. Vesta Housing, Inc. [Member] Vesta Housing, Inc. Dividends Payable [Table] Dividends Payable [Table] Weighted average shares outstanding, basic (in shares) Weighted Average Number of Shares Outstanding, Basic Per share amounts: Investment Company, Financial Highlights [Roll Forward] Dividend and interest receivables Dividend and Interest Receivable Management Fee, Period [Domain] Management Fee, Period [Domain] Management Fee, Period [Domain] Investment, Issuer Name [Axis] Investment, Issuer Name [Axis] Subsequent Events [Abstract] Segment Reporting [Abstract] Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Debt Disclosure [Abstract] Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Amortization of deferred costs related to borrowing facility Amortization of Debt Issuance Costs Reference Rate Reference Rate [Member] Reference Rate Total expenses Investment Income, Investment Expense Entity Tax Identification Number Entity Tax Identification Number Contributions from shareholder (in dollars per share) Investment Company, Contributions From Shareholder, Per Share Investment Company, Contributions From Shareholder, Per Share Total assets representing non-qualifying assets, percentage Investment Owned, Percent Of Net Assets Representing Non-Qualifying Assets Investment Owned, Percent Of Net Assets Representing Non-Qualifying Assets Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Year 8 Management Fee, Period Eight [Member] Management Fee, Period Eight Shares issued (in shares) Common Stock, Shares, Issued Year 2 Management Fee, Period Two [Member] Management Fee, Period Two Use of Estimates Use of Estimates, Policy [Policy Text Block] Principal payments on loans, net of accretion and Distributions to shareholder Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements Cash distributions to shareholder Payments of Dividends Entity Public Float Entity Public Float Trading Arrangement: Trading Arrangement [Axis] Total Shareholder Return Amount Total Shareholder Return Amount SUBSEQUENT EVENTS Subsequent Events [Text Block] Insider Trading Arrangements [Line Items] Net unrealized depreciation Investment Company, Distributable Earnings (Loss), Accumulated Appreciation (Depreciation) Total liabilities Liabilities Maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Biotechnology Biotechnology Loan Investments, Biotechnology [Member] Loan Investments, Biotechnology Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] EXPENSES: Operating Expenses [Abstract] Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Asset Class [Domain] Asset Class [Domain] Net realized loss from loans and Net change in unrealized loss from loans Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings Statement [Line Items] Statement [Line Items] Year 4 Management Fee, Period Four [Member] Management Fee, Period Four Variable Rate [Axis] Variable Rate [Axis] Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Cash and cash equivalents Total cash and cash equivalents Cash and Cash Equivalent Fair Value Measurement Inputs and Valuation Techniques [Table] Fair Value Measurement Inputs and Valuation Techniques [Table] End of Term Payment Investment Owned, End Of Term Payment Investment Owned, End Of Term Payment Counterparty Name [Axis] Counterparty Name [Axis] Total investment income Gross Investment Income, Operating Distribution Type [Domain] Distribution Type [Domain] Common Stock Common Stock [Member] Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Non-NEOs Non-NEOs [Member] Ratio Technologies, Inc. Subtotal Ratio Technologies, Inc. [Member] Ratio Technologies, Inc. Open Inc. Subtotal Open Inc. [Member] Open Inc. Net increase (decrease) in cash and cash equivalents Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation