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Consolidated Schedule of Investments (Unaudited) - Investments (Details) - USD ($)
$ in Thousands
Jun. 30, 2024
Mar. 31, 2024
Dec. 31, 2023
Jun. 30, 2023
Mar. 31, 2023
Dec. 31, 2022
Investments at cost $ 725,430   $ 759,182      
Investments at fair value 646,862   709,085      
Warrant [Member]            
Investments at cost 17,463   16,526      
Investments at fair value 21,459   24,594      
Investment, Unaffiliated Issuer [Member]            
Investments at cost 679,477   716,077      
Investments at fair value 619,629   693,730      
Investment, Unaffiliated Issuer [Member] | Debt Securities [Member]            
Investments at cost 644,952   692,345      
Investments at fair value 587,671   664,203      
Investment, Unaffiliated Issuer [Member] | Warrant [Member]            
Investments at cost 17,338   16,400      
Investments at fair value 21,459   24,594      
Investment, Affiliated Issuer, Noncontrolled [Member]            
Investments at cost 28,781   28,677      
Investments at fair value 15,847 $ 12,577 1,132 $ 906 $ 846 $ 0
Investment, Affiliated Issuer, Noncontrolled [Member] | Debt Securities [Member]            
Investments at fair value 15,847          
Investment, Affiliated Issuer, Noncontrolled [Member] | Warrant [Member]            
Investments at cost 125   126      
Investments at fair value 0   0      
Investment, Affiliated Issuer, Controlled [Member]            
Investments at cost 17,172   14,428      
Investments at fair value 11,386 13,644 14,223      
Investment, Affiliated Issuer, Controlled [Member] | Debt Investments [Member]            
Investments at cost 6,687          
Investments at fair value 5,550          
Biotechnology Sector [Member]            
Investments at cost 133,486   145,544      
Investments at fair value 118,846   117,781      
Medical Device Sector [Member]            
Investments at cost 163,383   147,064      
Investments at fair value 149,839   145,019      
Communications Sector [Member]            
Investments at cost 15,462   19,192      
Investments at fair value 18,263   22,188      
Software Sector [Member]            
Investments at cost 163,033   164,133      
Investments at fair value 159,279   160,749      
Consumer-related Technologies [Member] | Investment, Affiliated Issuer, Controlled [Member] | Debt Securities [Member]            
Investments at cost     5,335      
Investments at fair value     4,969      
Other Sustainability Sector [Member]            
Investments at cost 100,274   98,906      
Investments at fair value 69,809   80,370      
Other Sustainability Sector [Member] | Investment, Unaffiliated Issuer [Member] | Warrant [Member]            
Investments at cost 1,189   999      
Investments at fair value 728   $ 542      
Number of Shares (in shares)          
Diagnostics Sector [Member]            
Investments at cost 16,210   $ 19,735      
Investments at fair value 14,281   19,701      
Technology Sector [Member] | Investment, Unaffiliated Issuer [Member] | Debt Securities [Member]            
Investments at cost 232,921   275,026      
Investments at fair value 218,930   269,790      
Technology Sector [Member] | Investment, Unaffiliated Issuer [Member] | Warrant [Member]            
Investments at cost 10,360   9,733      
Investments at fair value 13,261   14,506      
Life Science [Member] | Investment, Unaffiliated Issuer [Member] | Debt Securities [Member]            
Investments at cost 246,362   249,642      
Investments at fair value 234,965   244,815      
Life Science [Member] | Investment, Affiliated Issuer, Noncontrolled [Member] | Debt Securities [Member]            
Investments at cost 23,656   23,551      
Investments at fair value     1,000      
Other Healthcare Sector [Member]            
Investments at cost 102   102      
Investments at fair value 979   1,366      
Healthcare Information and Services Segment [Member] | Investment, Unaffiliated Issuer [Member] | Debt Securities [Member]            
Investments at cost 66,584   69,770      
Investments at fair value 64,695   69,770      
Healthcare Information and Services Segment [Member] | Investment, Unaffiliated Issuer [Member] | Warrant [Member]            
Investments at cost 966   966      
Investments at fair value 1,368   1,871      
Data Storage Sector [Member]            
Investments at cost 417   417      
Investments at fair value 428   418      
Networking Sector [Member]            
Investments at cost 1,511   5,451      
Investments at fair value 1,309   5,297      
Internet and Media Sector [Member]            
Investments at cost 329   329      
Investments at fair value 1,203   1,582      
Power Management Sector [Member]            
Investments at cost 1,585   1,585      
Investments at fair value 2,700   2,700      
Life Science Segment [Member] | Investment, Unaffiliated Issuer [Member] | Warrant [Member]            
Investments at cost 4,823   4,702      
Investments at fair value 6,102   7,675      
Semiconductor Sector [Member]            
Investments at cost 45   45      
Investments at fair value 0   0      
Software, Healthcare Information and Service [Member]            
Investments at cost 51,238   50,899      
Investments at fair value 50,803   50,574      
Sustainability Segment [Member] | Investment, Unaffiliated Issuer [Member] | Debt Securities [Member]            
Investments at cost 99,085   97,907      
Investments at fair value 69,081   79,828      
Evelo Biosciences, Inc. [Member] | Biotechnology Sector [Member] | Investment, Affiliated Issuer, Noncontrolled [Member] | Warrant [Member]            
Investments at cost 125   126      
Investments at fair value $ 0   $ 0      
Number of Shares (in shares) 23,196   23,196      
Aulea Medical, Inc. [Member] | Investment, Affiliated Issuer, Noncontrolled [Member]            
Investments at fair value $ 0 0 $ 0      
Nexii Building Solutions, Inc [Member] | Debt Securities [Member]            
Investments at fair value 10,900          
Nexii Building Solutions, Inc [Member] | Investment, Affiliated Issuer, Controlled [Member]            
Investments at fair value 10,900          
HIMV LLC [Member] | Investment, Affiliated Issuer, Controlled [Member]            
Investments at fair value 5,836 $ 5,845 6,230      
Cadrenal Therapeutics, Inc. [Member] | Investment, Affiliated Issuer, Noncontrolled [Member]            
Investments at fair value       $ 906 $ 846 $ 0
Unrestricted Short Term Investments [Member]            
Investments at cost 32,320   26,450      
Investments at fair value 32,320   26,450      
Unrestricted Short Term Investments [Member] | U S Bank Money Market Deposit Account [Member]            
Investments at cost 32,320   26,450      
Investments at fair value $ 32,320   $ 26,450      
Term Loan, Prime Index, One [Member] | Castle Creek Biosciences, Inc [Member] | Biotechnology Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 13.25%   13.25%      
Margin 4.75%   4.75%      
Floor 9.55%   9.55%      
Ceiling 13.50%   13.50%      
ETP 5.50%   5.50%      
Maturity Date May 01, 2026   May 01, 2026      
Principal Amount $ 4,583   $ 5,000      
Investments at cost 4,570   4,979      
Investments at fair value $ 4,570   $ 4,979      
Term Loan, Prime Index, One [Member] | Scientia Vascular, Inc. [Member] | Medical Device Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 13.25%   13.25%      
Margin 4.75%   4.75%      
Floor 8.50%   8.50%      
Ceiling 0.00%   0.00%      
ETP 5.00%   5.00%      
Maturity Date Jan. 01, 2027   Jan. 01, 2027      
Principal Amount $ 3,750   $ 3,750      
Investments at cost 3,730   3,722      
Investments at fair value $ 3,730   $ 3,722      
Term Loan, Prime Index, One [Member] | Axiom Space, Inc [Member] | Communications Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 14.50%   14.50%      
Margin 6.00%   6.00%      
Floor 9.25%   9.25%      
Ceiling 0.00%   0.00%      
ETP 2.50%   2.50%      
Maturity Date Jun. 01, 2026   Jun. 01, 2026      
Principal Amount $ 5,000   $ 6,250      
Investments at cost 4,975   6,218      
Investments at fair value $ 4,975   $ 6,218      
Term Loan, Prime Index, One [Member] | DropOff, Inc. [Member] | Software Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 15.00%   15.00%      
Margin 6.50%   6.50%      
Floor 9.75%   9.75%      
Ceiling 0.00%   0.00%      
ETP 3.50%   3.50%      
Maturity Date Apr. 01, 2026   Apr. 01, 2026      
Principal Amount $ 6,777   $ 6,625      
Investments at cost 6,695   6,519      
Investments at fair value $ 6,093   $ 6,176      
Term Loan, Prime Index, One [Member] | Evelo Biosciences, Inc. [Member] | Biotechnology Sector [Member] | Investment, Affiliated Issuer, Noncontrolled [Member]            
Cash Rate 12.75%   12.75%      
Margin 4.25%   4.25%      
Floor 11.00%   11.00%      
Ceiling 0.00%   0.00%      
ETP 4.25%   2.27%      
Maturity Date Jan. 01, 2028   Jan. 01, 2028      
Principal Amount $ 5,898   $ 5,532      
Investments at cost 5,228   5,228      
Investments at fair value $ 3,503   $ 222      
Term Loan, Prime Index, One [Member] | Better Place Forests Co. [Member] | Consumer-related Technologies [Member] | Investment, Affiliated Issuer, Controlled [Member]            
Cash Rate 12.25%   12.25%      
Margin 3.75%   3.75%      
Floor 12.00%   12.00%      
Ceiling 0.00%   0.00%      
ETP 2.78%   1.85%      
Maturity Date Aug. 01, 2029   Aug. 01, 2029      
Principal Amount $ 3,772   $ 3,547      
Investments at cost 3,814   3,585      
Investments at fair value $ 3,166   $ 3,339      
Term Loan, Prime Index, One [Member] | Robin Healthcare, Inc. [Member] | Medical Device Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate     14.00%      
Margin     5.50%      
Floor     10.25%      
Ceiling     0.00%      
ETP     4.00%      
Maturity Date     Nov. 01, 2026      
Principal Amount     $ 3,500      
Investments at cost     3,469      
Investments at fair value     $ 1,574      
Term Loan, Prime Index, One [Member] | New Aerofarms, Inc. assignee of Aerofarms, Inc [Member] | Other Sustainability Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 15.25%   15.25%      
Margin 6.75%   6.75%      
Floor 10.00%   10.00%      
Ceiling 0.00%   0.00%      
ETP 4.33%   4.33%      
Maturity Date Dec. 01, 2026   Dec. 01, 2026      
Principal Amount $ 3,750   $ 3,750      
Investments at cost 3,705   3,685      
Investments at fair value $ 3,705   $ 3,685      
Term Loan, Prime Index, One [Member] | Hound Labs, Inc. [Member] | Diagnostics Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 14.50%   14.50%      
Margin 6.00%   6.00%      
Floor 9.25%   9.25%      
Ceiling 0.00%   0.00%      
ETP 3.50%   3.50%      
Maturity Date Jun. 01, 2026   Jun. 01, 2026      
Principal Amount $ 1,607   $ 2,500      
Investments at cost 1,596   2,484      
Investments at fair value $ 1,124   $ 2,484      
Term Loan, Prime Index, One [Member] | Parse Biosciences, Inc. [Member] | Diagnostics Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 11.75%   11.75%      
Margin 3.25%   3.25%      
Floor 11.50%   11.50%      
Ceiling 0.00%   0.00%      
ETP 5.00%   5.00%      
Maturity Date Jan. 01, 2028   Jan. 01, 2028      
Principal Amount $ 5,000   $ 5,000      
Investments at cost 4,645   4,633      
Investments at fair value $ 4,645   $ 4,633      
Term Loan, Prime Index, One [Member] | CAMP NYC, Inc [Member] | Consumer-related Technologies [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 15.75%   15.75%      
Margin 7.25%   7.25%      
Floor 10.50%   10.50%      
Ceiling 0.00%   0.00%      
ETP 3.00%   3.00%      
Maturity Date Mar. 01, 2027   May 01, 2026      
Principal Amount $ 2,033   $ 3,383      
Investments at cost 1,975   3,356      
Investments at fair value $ 1,975   $ 3,356      
Term Loan, Prime Index, One [Member] | Kodiak Robotics, Inc. [Member] | Software Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 14.00%   14.00%      
Margin 5.50%   5.50%      
Floor 10.25%   10.25%      
Ceiling 0.00%   0.00%      
ETP 4.00%   4.00%      
Maturity Date Apr. 01, 2026   Apr. 01, 2026      
Principal Amount $ 10,000   $ 10,000      
Investments at cost 9,929   9,895      
Investments at fair value $ 9,929   $ 9,895      
Term Loan, Prime Index, One [Member] | Emalex Biosciences, Inc. [Member] | Biotechnology Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 13.22%   13.22%      
Margin 4.72%   4.72%      
Floor 9.75%   9.75%      
Ceiling 0.00%   0.00%      
ETP 5.00%   5.00%      
Maturity Date Nov. 01, 2025   Jun. 01, 2024      
Principal Amount $ 5,000   $ 1,414      
Investments at cost 4,964   1,410      
Investments at fair value $ 4,964   $ 1,410      
Term Loan, Prime Index, One [Member] | Nexii Building Solutions, Inc [Member] | Other Sustainability Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 15.50%   15.50%      
Margin 7.00%   7.00%      
Floor 10.25%   10.25%      
Ceiling 0.00%   0.00%      
ETP 2.50%   2.50%      
Maturity Date Mar. 31, 2024   Mar. 31, 2024      
Principal Amount $ 8,871   $ 8,425      
Investments at cost 8,222   8,353      
Investments at fair value $ 2,189   $ 4,549      
Term Loan, Prime Index, One [Member] | Engage3, LLC [Member] | Software Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate     14.75%      
Margin     6.25%      
Floor     9.75%      
Ceiling     0.00%      
ETP     4.50%      
Maturity Date     Jul. 01, 2027      
Principal Amount     $ 3,750      
Investments at cost     3,728      
Investments at fair value     $ 3,728      
Term Loan, Prime Index, One [Member] | Sonex Health, Inc. [Member] | Medical Device Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 12.00%   12.00%      
Margin 3.50%   3.50%      
Floor 11.75%   11.75%      
Ceiling 0.00%   0.00%      
ETP 8.00%   8.00%      
Maturity Date Sep. 01, 2027   Sep. 01, 2027      
Principal Amount $ 2,500   $ 2,500      
Investments at cost 2,477   2,297      
Investments at fair value $ 2,477   $ 2,297      
Term Loan, Prime Index, One [Member] | Clara Foods Co [Member] | Consumer-related Technologies [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 14.25%   14.25%      
Margin 5.75%   5.75%      
Floor 9.00%   9.00%      
Ceiling 0.00%   0.00%      
ETP 5.50%   5.50%      
Maturity Date Aug. 01, 2025   Aug. 01, 2025      
Principal Amount $ 1,083   $ 1,667      
Investments at cost 1,076   1,656      
Investments at fair value $ 1,076   $ 1,656      
Term Loan, Prime Index, One [Member] | Soli Organic, Inc [Member] | Other Sustainability Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 15.25%   15.25%      
Margin 6.75%   6.75%      
Floor 10.00%   10.00%      
Ceiling 0.00%   0.00%      
ETP 2.75%   2.75%      
Maturity Date Apr. 01, 2026   Apr. 01, 2026      
Principal Amount $ 5,000   $ 5,000      
Investments at cost 4,922   4,959      
Investments at fair value $ 4,922   $ 4,959      
Term Loan, Prime Index, One [Member] | KSQ Therapeutics, Inc. [Member] | Biotechnology Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 13.25%   13.25%      
Margin 4.75%   4.75%      
Floor 8.50%   8.50%      
Ceiling 0.00%   0.00%      
ETP 5.50%   5.50%      
Maturity Date May 01, 2027   May 01, 2027      
Principal Amount $ 6,250   $ 6,250      
Investments at cost 6,210   6,199      
Investments at fair value $ 6,210   $ 6,199      
Term Loan, Prime Index, One [Member] | BrightInsight, Inc. [Member] | Software, Healthcare Information and Service [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 14.00%   14.00%      
Margin 5.50%   5.50%      
Floor 9.50%   9.50%      
Ceiling 0.00%   0.00%      
ETP 3.00%   3.00%      
Maturity Date Aug. 01, 2027   Aug. 01, 2027      
Principal Amount $ 7,000   $ 7,000      
Investments at cost 6,807   6,684      
Investments at fair value $ 6,807   $ 6,684      
Term Loan, Prime Index, One [Member] | Havenly, Inc. [Member] | Consumer-related Technologies [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 13.50%   13.50%      
Margin 5.00%   5.00%      
Floor 5.00%   5.00%      
Ceiling 0.00%   0.00%      
ETP 10.40%   4.00%      
Maturity Date Mar. 01, 2027   Mar. 01, 2027      
Principal Amount $ 2,000   $ 2,000      
Investments at cost 1,367   1,421      
Investments at fair value $ 1,367   $ 1,421      
Term Loan, Prime Index, One [Member] | Temperpack Technologies, Inc [Member] | Other Sustainability Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 15.25%   15.25%      
Margin 6.75%   6.75%      
Floor 10.00%   10.00%      
Ceiling 0.00%   0.00%      
ETP 2.50%   2.50%      
Maturity Date Apr. 01, 2028   Apr. 01, 2028      
Principal Amount $ 3,750   $ 3,750      
Investments at cost 3,700   3,694      
Investments at fair value $ 3,700   $ 3,694      
Term Loan, Prime Index, One [Member] | Elligo Health Research, Inc [Member] | Software, Healthcare Information and Service [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 12.00%   12.00%      
Margin 3.50%   3.50%      
Floor 11.75%   11.75%      
Ceiling 0.00%   0.00%      
ETP 4.00%   4.00%      
Maturity Date Oct. 01, 2027   Oct. 01, 2027      
Principal Amount $ 10,000   $ 10,000      
Investments at cost 9,675   9,656      
Investments at fair value $ 9,675   $ 9,656      
Term Loan, Prime Index, One [Member] | Divergent Technologies, Inc. [Member] | Consumer-related Technologies [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate     11.25%      
Margin     6.00%      
Floor     9.50%      
Ceiling     11.25%      
ETP     3.00%      
Maturity Date     Jul. 01, 2027      
Principal Amount     $ 3,750      
Investments at cost     3,608      
Investments at fair value     $ 3,608      
Term Loan, Prime Index, One [Member] | Lemongrass Holdings, Inc [Member] | Software Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 15.00%   15.00%      
Margin 6.50%   6.50%      
Floor 9.75%   9.75%      
Ceiling 0.00%   0.00%      
ETP 2.50%   2.50%      
Maturity Date Mar. 01, 2026   Mar. 01, 2026      
Principal Amount $ 4,375   $ 5,000      
Investments at cost 4,358   4,971      
Investments at fair value $ 4,358   $ 4,971      
Term Loan, Prime Index, One [Member] | Native Microbials, Inc. [Member] | Biotechnology Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 13.75%   13.75%      
Margin 5.25%   5.25%      
Floor 8.50%   8.50%      
Ceiling 0.00%   0.00%      
ETP 5.00%   5.00%      
Maturity Date Nov. 01, 2026   Nov. 01, 2026      
Principal Amount $ 3,625   $ 3,750      
Investments at cost 3,605   3,716      
Investments at fair value $ 3,605   $ 3,716      
Term Loan, Prime Index, One [Member] | Greenlight Biosciences, Inc [Member] | Biotechnology Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 14.25%   14.25%      
Margin 5.75%   5.75%      
Floor 9.00%   9.00%      
Ceiling 0.00%   0.00%      
ETP 3.00%   3.00%      
Maturity Date Jul. 01, 2025   Jul. 01, 2025      
Principal Amount $ 2,167   $ 3,000      
Investments at cost 2,110   2,914      
Investments at fair value $ 2,110   $ 2,870      
Term Loan, Prime Index, One [Member] | PDS Biotechnology Corporation [Member] | Biotechnology Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 14.25%   14.25%      
Margin 5.75%   5.75%      
Floor 9.75%   9.75%      
Ceiling 0.00%   0.00%      
ETP 3.75%   3.75%      
Maturity Date Sep. 01, 2026   Sep. 01, 2026      
Principal Amount $ 10,000   $ 10,000      
Investments at cost 9,937   9,911      
Investments at fair value $ 9,937   $ 9,911      
Term Loan, Prime Index, One [Member] | SafelyYou, Inc [Member] | Software, Healthcare Information and Service [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 11.75%   11.75%      
Margin 3.25%   3.25%      
Floor 11.00%   11.00%      
Ceiling 0.00%   0.00%      
ETP 5.00%   5.00%      
Maturity Date Jun. 01, 2027   Jun. 01, 2027      
Principal Amount $ 5,000   $ 5,000      
Investments at cost 4,784   4,648      
Investments at fair value $ 4,784   $ 4,648      
Term Loan, Prime Index, One [Member] | Lytics, Inc. [Member] | Software Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 14.50%   14.50%      
Margin 6.00%   6.00%      
Floor 14.25%   14.25%      
Ceiling 0.00%   0.00%      
ETP 5.00%   4.00%      
Maturity Date Nov. 01, 2026   Nov. 01, 2026      
Principal Amount $ 2,500   $ 2,500      
Investments at cost 2,476   2,471      
Investments at fair value $ 2,476   $ 2,373      
Term Loan, Prime Index, One [Member] | Provivi, Inc. [Member] | Biotechnology Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 13.86%   13.86%      
Margin 5.36%   5.36%      
Floor 9.50%   9.50%      
Ceiling 0.00%   0.00%      
ETP 4.30%   5.50%      
Maturity Date Jan. 01, 2027   Dec. 01, 2024      
Principal Amount $ 3,482   $ 4,666      
Investments at cost 3,399   4,579      
Investments at fair value $ 3,206   $ 4,414      
Term Loan, Prime Index, One [Member] | Lyrical Foods, Inc [Member] | Consumer-related Technologies [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 12.00%   12.00%      
Margin 3.50%   3.50%      
Floor 9.00%   9.00%      
Ceiling 0.00%   0.00%      
ETP 1.00%   1.00%      
Maturity Date Sep. 01, 2027   Sep. 01, 2027      
Principal Amount $ 2,500   $ 2,500      
Investments at cost 2,591   2,591      
Investments at fair value $ 2,228   $ 2,429      
Term Loan, Prime Index, One [Member] | Spineology, Inc [Member] | Medical Device Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 15.50%   15.50%      
Margin 7.00%   7.00%      
Floor 10.25%   10.25%      
Ceiling 0.00%   0.00%      
ETP 1.00%   1.00%      
Maturity Date Oct. 01, 2025   Oct. 01, 2025      
Principal Amount $ 5,000   $ 5,000      
Investments at cost 4,972   4,978      
Investments at fair value $ 4,972   $ 4,978      
Term Loan, Prime Index, One [Member] | MyForest Foods Co [Member] | Consumer-related Technologies [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 15.25%   15.25%      
Margin 6.75%   6.75%      
Floor 10.00%   10.00%      
Ceiling 0.00%   0.00%      
ETP 3.00%   3.00%      
Maturity Date Oct. 01, 2025   Oct. 01, 2025      
Principal Amount $ 2,667   $ 3,667      
Investments at cost 2,657   3,647      
Investments at fair value $ 2,657   $ 3,647      
Term Loan, Prime Index, One [Member] | Stealth BioTherapeutics Inc. [Member] | Biotechnology Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 14.00%   14.00%      
Margin 5.50%   5.50%      
Floor 8.75%   8.75%      
Ceiling 0.00%   0.00%      
ETP 6.00%   6.00%      
Maturity Date Oct. 01, 2025   Oct. 01, 2025      
Principal Amount $ 3,238   $ 4,250      
Investments at cost 3,197   4,193      
Investments at fair value $ 3,197   $ 4,193      
Term Loan, Prime Index, One [Member] | Mirantis, Inc [Member] | Software Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 12.00%   12.00%      
Margin 3.50%   3.50%      
Floor 11.75%   11.75%      
Ceiling 0.00%   0.00%      
ETP 4.00%   4.00%      
Maturity Date Oct. 01, 2028   Oct. 01, 2028      
Principal Amount $ 5,000   $ 5,000      
Investments at cost 4,788   4,779      
Investments at fair value $ 4,788   $ 4,779      
Term Loan, Prime Index, One [Member] | Tallac Therapeutics, Inc [Member] | Biotechnology Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 12.75%   12.75%      
Margin 4.25%   4.25%      
Floor 12.25%   12.25%      
Ceiling 0.00%   0.00%      
ETP 4.00%   4.00%      
Maturity Date Aug. 01, 2027   Aug. 01, 2027      
Principal Amount $ 2,500   $ 2,500      
Investments at cost 2,350   2,230      
Investments at fair value $ 2,350   $ 2,230      
Term Loan, Prime Index, One [Member] | Swift Health Systems Inc. [Member] | Medical Device Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 13.75%   13.75%      
Margin 5.25%   5.25%      
Floor 9.00%   9.00%      
Ceiling 0.00%   0.00%      
ETP 5.00%   5.00%      
Maturity Date Jul. 01, 2027   Jul. 01, 2027      
Principal Amount $ 3,500   $ 3,500      
Investments at cost 3,473   3,467      
Investments at fair value $ 876   $ 3,467      
Term Loan, Prime Index, One [Member] | NextCar Holding Company, Inc [Member] | Consumer-related Technologies [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 14.25%   14.25%      
Margin 5.75%   5.75%      
Floor 9.00%   9.00%      
Ceiling 0.00%   0.00%      
ETP 5.25%   5.25%      
Maturity Date Oct. 31, 2023   Oct. 31, 2023      
Principal Amount $ 5,780   $ 5,752      
Investments at cost 5,572   5,752      
Investments at fair value $ 3,331   $ 5,018      
Term Loan, Prime Index, One [Member] | Noodle Partners, Inc. [Member] | Software Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 13.50%   13.50%      
Margin 5.00%   5.00%      
Floor 12.00%   12.00%      
Ceiling 0.00%   0.00%      
ETP 3.00%   3.00%      
Maturity Date Mar. 01, 2027   Mar. 01, 2027      
Principal Amount $ 10,000   $ 10,000      
Investments at cost 9,905   9,885      
Investments at fair value $ 9,905   $ 9,885      
Term Loan, Prime Index, One [Member] | VERO Biotech LLC [Member] | Medical Device Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 12.25%   12.25%      
Margin 3.75%   3.75%      
Floor 12.25%   12.25%      
Ceiling 0.00%   0.00%      
ETP 4.00%   4.00%      
Maturity Date Jan. 01, 2029   Jan. 01, 2029      
Principal Amount $ 15,000   $ 15,000      
Investments at cost 14,704   14,675      
Investments at fair value $ 14,704   $ 14,675      
Term Loan, Prime Index, One [Member] | Candesant Biomedical, Inc. [Member] | Medical Device Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 12.00%   12.00%      
Margin 3.50%   3.50%      
Floor 11.50%   11.50%      
Ceiling 0.00%   0.00%      
ETP 5.00%   5.00%      
Maturity Date Sep. 01, 2027   Sep. 01, 2027      
Principal Amount $ 5,000   $ 5,000      
Investments at cost 4,770   4,757      
Investments at fair value $ 4,770   $ 4,757      
Term Loan, Prime Index, One [Member] | Reputation Institute, Inc [Member] | Software Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 15.75%   15.75%      
Margin 7.25%   7.25%      
Floor 10.50%   10.50%      
Ceiling 0.00%   0.00%      
ETP 3.00%   3.00%      
Maturity Date Aug. 01, 2025   Aug. 01, 2025      
Principal Amount $ 2,583   $ 3,667      
Investments at cost 2,542   3,625      
Investments at fair value $ 2,542   $ 3,625      
Term Loan, Prime Index, One [Member] | Ceribell, Inc. [Member] | Medical Device Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 11.25%   12.00%      
Margin 2.75%   3.50%      
Floor 9.25%   8.25%      
Ceiling 0.00%   0.00%      
ETP 4.00%   5.50%      
Maturity Date Mar. 01, 2029   Oct. 01, 2024      
Principal Amount $ 5,000   $ 3,750      
Investments at cost 4,814   3,738      
Investments at fair value $ 4,814   $ 3,738      
Term Loan, Prime Index, One [Member] | Slingshot Aerospace, Inc. [Member] | Software Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 14.25%   14.25%      
Margin 5.75%   5.75%      
Floor 9.75%   9.75%      
Ceiling 0.00%   0.00%      
ETP 5.00%   5.00%      
Maturity Date Aug. 01, 2026   Aug. 01, 2026      
Principal Amount $ 5,000   $ 5,000      
Investments at cost 4,971   4,959      
Investments at fair value $ 4,971   $ 4,959      
Term Loan, Prime Index, One [Member] | Cognoa, Inc. [Member] | Medical Device Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 14.00%   14.00%      
Margin 5.50%   5.50%      
Floor 8.75%   8.75%      
Ceiling 0.00%   0.00%      
ETP 6.00%   6.00%      
Maturity Date Aug. 01, 2026   Aug. 01, 2026      
Principal Amount $ 4,028   $ 4,583      
Investments at cost 3,993   4,546      
Investments at fair value $ 3,993   $ 4,546      
Term Loan, Prime Index, One [Member] | Optoro, Inc. [Member] | Consumer-related Technologies [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 14.75%   14.75%      
Margin 6.25%   6.25%      
Floor 9.50%   9.50%      
Ceiling 0.00%   0.00%      
ETP 4.00%   4.00%      
Maturity Date Aug. 01, 2027   Aug. 01, 2027      
Principal Amount $ 2,500   $ 2,500      
Investments at cost 2,432   2,416      
Investments at fair value $ 2,432   $ 2,416      
Term Loan, Prime Index, One [Member] | Conventus Orthopaedics, Inc [Member] | Medical Device Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 13.32%   13.32%      
Margin 4.82%   4.82%      
Floor 9.25%   9.25%      
Ceiling 0.00%   0.00%      
ETP 10.36%   10.36%      
Maturity Date Jul. 01, 2025   Jul. 01, 2025      
Principal Amount $ 3,766   $ 3,960      
Investments at cost 3,729   3,923      
Investments at fair value $ 3,729   $ 3,923      
Term Loan, Prime Index, One [Member] | CSA Medical, Inc [Member] | Medical Device Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 13.59%   13.59%      
Margin 5.09%   5.09%      
Floor 10.00%   10.00%      
Ceiling 0.00%   0.00%      
ETP 5.00%   5.00%      
Maturity Date Jan. 01, 2024   Jan. 01, 2024      
Principal Amount $ 391   $ 500      
Investments at cost 391   500      
Investments at fair value $ 391   $ 500      
Term Loan, Prime Index, One [Member] | Standvast Holdings, LLC [Member] | Consumer-related Technologies [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 12.75%          
Margin 4.25%          
Floor 12.75%          
Ceiling 0.00%          
ETP 3.00%          
Maturity Date Jun. 01, 2028          
Principal Amount $ 2,500          
Investments at cost 2,240          
Investments at fair value $ 2,240          
Term Loan, Prime Index, One [Member] | Supply Network Visibility Holdings, LLC [Member] | Software Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 12.75%   12.75%      
Margin 4.25%   4.25%      
Floor 12.00%   12.00%      
Ceiling 0.00%   0.00%      
ETP 2.50%   2.50%      
Maturity Date Jun. 01, 2028   Jun. 01, 2028      
Principal Amount $ 2,500   $ 2,500      
Investments at cost 2,476   2,457      
Investments at fair value $ 2,476   $ 2,457      
Term Loan, Prime Index, One [Member] | Unagi, Inc [Member] | Consumer-related Technologies [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 16.25%   16.25%      
Margin 7.75%   7.75%      
Floor 11.00%   11.00%      
Ceiling 0.00%   0.00%      
ETP 0.00%   0.00%      
Maturity Date May 01, 2027   May 01, 2027      
Principal Amount $ 1,306   $ 1,204      
Investments at cost 1,086   1,086      
Investments at fair value $ 570   $ 872      
Term Loan, Prime Index, One [Member] | MicroTransponder, Inc. [Member] | Medical Device Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 12.25%   12.25%      
Margin 3.75%   3.75%      
Floor 12.25%   12.25%      
Ceiling 0.00%   0.00%      
ETP 3.50%   3.50%      
Maturity Date Jan. 01, 2029   Jan. 01, 2029      
Principal Amount $ 3,750   $ 3,750      
Investments at cost 3,694   3,689      
Investments at fair value $ 3,694   $ 3,689      
Term Loan, Prime Index, One [Member] | Liqid, Inc [Member] | Networking Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 14.75%   14.75%      
Margin 6.25%   6.25%      
Floor 9.50%   9.50%      
Ceiling 0.00%   0.00%      
ETP 4.00%   4.00%      
Maturity Date Sep. 01, 2024   Sep. 01, 2024      
Principal Amount $ 333   $ 1,500      
Investments at cost 329   1,481      
Investments at fair value $ 329   $ 1,481      
Term Loan, Prime Index, One [Member] | Viken Detection Corporation [Member] | Software Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 12.50%   12.50%      
Margin 4.00%   4.00%      
Floor 11.75%   11.75%      
Ceiling 0.00%   0.00%      
ETP 3.50%   3.50%      
Maturity Date Jun. 01, 2027   Jun. 01, 2027      
Principal Amount $ 5,000   $ 5,000      
Investments at cost 4,945   4,773      
Investments at fair value $ 4,945   $ 4,773      
Term Loan, Prime Index, One [Member] | Britecore Holdings, Inc. [Member] | Software Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 14.00%   14.00%      
Margin 5.50%   5.50%      
Floor 14.00%   14.00%      
Ceiling 0.00%   0.00%      
ETP 3.00%   3.00%      
Maturity Date Oct. 01, 2028   Oct. 01, 2028      
Principal Amount $ 5,000   $ 5,000      
Investments at cost 4,902   4,860      
Investments at fair value $ 4,902   $ 4,860      
Term Loan, Prime Index Two [Member] | Castle Creek Biosciences, Inc [Member] | Biotechnology Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 13.25%   13.25%      
Margin 4.75%   4.75%      
Floor 9.55%   9.55%      
Ceiling 13.50%   13.50%      
ETP 5.50%   5.50%      
Maturity Date May 01, 2026   May 01, 2026      
Principal Amount $ 4,583   $ 5,000      
Investments at cost 4,570   4,979      
Investments at fair value $ 4,570   $ 4,979      
Term Loan, Prime Index Two [Member] | Scientia Vascular, Inc. [Member] | Medical Device Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 13.25%   13.25%      
Margin 4.75%   4.75%      
Floor 8.50%   8.50%      
Ceiling 0.00%   0.00%      
ETP 5.00%   5.00%      
Maturity Date Jan. 01, 2027   Jan. 01, 2027      
Principal Amount $ 3,750   $ 3,750      
Investments at cost 3,729   3,722      
Investments at fair value $ 3,729   $ 3,722      
Term Loan, Prime Index Two [Member] | Axiom Space, Inc [Member] | Communications Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 14.50%   14.50%      
Margin 6.00%   6.00%      
Floor 9.25%   9.25%      
Ceiling 0.00%   0.00%      
ETP 2.50%   2.50%      
Maturity Date Jun. 01, 2026   Jun. 01, 2026      
Principal Amount $ 5,000   $ 6,250      
Investments at cost 4,975   6,218      
Investments at fair value $ 4,975   $ 6,218      
Term Loan, Prime Index Two [Member] | DropOff, Inc. [Member] | Software Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 15.00%   15.00%      
Margin 6.50%   6.50%      
Floor 9.75%   9.75%      
Ceiling 0.00%   0.00%      
ETP 3.50%   3.50%      
Maturity Date Apr. 01, 2026   Apr. 01, 2026      
Principal Amount $ 6,256   $ 6,116      
Investments at cost 6,180   6,018      
Investments at fair value $ 5,624   $ 5,701      
Term Loan, Prime Index Two [Member] | Evelo Biosciences, Inc. [Member] | Biotechnology Sector [Member] | Investment, Affiliated Issuer, Noncontrolled [Member]            
Cash Rate 12.75%   12.75%      
Margin 4.25%   4.25%      
Floor 11.00%   11.00%      
Ceiling 0.00%   0.00%      
ETP 4.25%   2.27%      
Maturity Date Jan. 01, 2028   Jan. 01, 2028      
Principal Amount $ 8,847   $ 8,298      
Investments at cost 7,972   7,867      
Investments at fair value $ 5,340   $ 336      
Term Loan, Prime Index Two [Member] | Better Place Forests Co. [Member] | Consumer-related Technologies [Member] | Investment, Affiliated Issuer, Controlled [Member]            
Cash Rate 12.25%   12.25%      
Margin 3.75%   3.75%      
Floor 12.00%   12.00%      
Ceiling 0.00%   0.00%      
ETP 2.78%   1.85%      
Maturity Date Aug. 01, 2029   Aug. 01, 2029      
Principal Amount $ 1,886   $ 1,773      
Investments at cost 1,867   1,750      
Investments at fair value $ 1,549   $ 1,630      
Term Loan, Prime Index Two [Member] | Robin Healthcare, Inc. [Member] | Medical Device Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate     14.00%      
Margin     5.50%      
Floor     10.25%      
Ceiling     0.00%      
ETP     4.00%      
Maturity Date     Nov. 01, 2026      
Principal Amount     $ 3,500      
Investments at cost     3,563      
Investments at fair value     $ 1,617      
Term Loan, Prime Index Two [Member] | New Aerofarms, Inc. assignee of Aerofarms, Inc [Member] | Other Sustainability Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 15.25%   15.25%      
Margin 6.75%   6.75%      
Floor 10.00%   10.00%      
Ceiling 0.00%   0.00%      
ETP 4.33%   4.33%      
Maturity Date Dec. 01, 2026   Dec. 01, 2026      
Principal Amount $ 3,750   $ 3,750      
Investments at cost 3,705   3,685      
Investments at fair value $ 3,705   $ 3,685      
Term Loan, Prime Index Two [Member] | Hound Labs, Inc. [Member] | Diagnostics Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 14.50%   14.50%      
Margin 6.00%   6.00%      
Floor 9.25%   9.25%      
Ceiling 0.00%   0.00%      
ETP 3.50%   3.50%      
Maturity Date Jun. 01, 2026   Jun. 01, 2026      
Principal Amount $ 1,607   $ 2,500      
Investments at cost 1,596   2,484      
Investments at fair value $ 1,124   $ 2,484      
Term Loan, Prime Index Two [Member] | Parse Biosciences, Inc. [Member] | Diagnostics Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 11.75%   11.75%      
Margin 3.25%   3.25%      
Floor 11.50%   11.50%      
Ceiling 0.00%   0.00%      
ETP 5.00%   5.00%      
Maturity Date Jan. 01, 2028   Jan. 01, 2028      
Principal Amount $ 5,000   $ 5,000      
Investments at cost 4,897   4,884      
Investments at fair value $ 4,897   $ 4,884      
Term Loan, Prime Index Two [Member] | Kodiak Robotics, Inc. [Member] | Software Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 14.00%   14.00%      
Margin 5.50%   5.50%      
Floor 10.25%   10.25%      
Ceiling 0.00%   0.00%      
ETP 4.00%   4.00%      
Maturity Date Apr. 01, 2026   Apr. 01, 2026      
Principal Amount $ 10,000   $ 10,000      
Investments at cost 9,929   9,895      
Investments at fair value $ 9,929   $ 9,895      
Term Loan, Prime Index Two [Member] | Emalex Biosciences, Inc. [Member] | Biotechnology Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 13.22%   13.22%      
Margin 4.72%   4.72%      
Floor 9.75%   9.75%      
Ceiling 0.00%   0.00%      
ETP 5.00%   5.00%      
Maturity Date May 01, 2026   Jun. 01, 2024      
Principal Amount $ 5,000   $ 1,414      
Investments at cost 4,967   1,410      
Investments at fair value $ 4,967   $ 1,410      
Term Loan, Prime Index Two [Member] | Nexii Building Solutions, Inc [Member] | Other Sustainability Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 15.50%   15.50%      
Margin 7.00%   7.00%      
Floor 10.25%   10.25%      
Ceiling 0.00%   0.00%      
ETP 2.50%   2.50%      
Maturity Date Mar. 31, 2024   Mar. 31, 2024      
Principal Amount $ 8,871   $ 8,425      
Investments at cost 7,996   8,229      
Investments at fair value $ 2,129   $ 4,481      
Term Loan, Prime Index Two [Member] | Engage3, LLC [Member] | Software Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate     14.75%      
Margin     6.25%      
Floor     9.75%      
Ceiling     0.00%      
ETP     4.50%      
Maturity Date     Jul. 01, 2027      
Principal Amount     $ 3,750      
Investments at cost     3,728      
Investments at fair value     $ 3,728      
Term Loan, Prime Index Two [Member] | Sonex Health, Inc. [Member] | Medical Device Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 12.00%   12.00%      
Margin 3.50%   3.50%      
Floor 11.75%   11.75%      
Ceiling 0.00%   0.00%      
ETP 8.00%   8.00%      
Maturity Date Sep. 01, 2027   Sep. 01, 2027      
Principal Amount $ 2,500   $ 2,500      
Investments at cost 2,477   2,473      
Investments at fair value $ 2,477   $ 2,473      
Term Loan, Prime Index Two [Member] | Clara Foods Co [Member] | Consumer-related Technologies [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 14.25%   14.25%      
Margin 5.75%   5.75%      
Floor 9.00%   9.00%      
Ceiling 0.00%   0.00%      
ETP 5.50%   5.50%      
Maturity Date Aug. 01, 2025   Aug. 01, 2025      
Principal Amount $ 1,083   $ 1,583      
Investments at cost 1,076   1,573      
Investments at fair value $ 1,076   $ 1,573      
Term Loan, Prime Index Two [Member] | Soli Organic, Inc [Member] | Other Sustainability Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 15.50%   15.25%      
Margin 0.00%   6.75%      
Floor 0.00%   10.00%      
Ceiling 0.00%   0.00%      
ETP 0.00%   2.75%      
Maturity Date Aug. 30, 2024   Apr. 01, 2026      
Principal Amount $ 490   $ 2,500      
Investments at cost 486   2,479      
Investments at fair value $ 129   $ 2,479      
Term Loan, Prime Index Two [Member] | KSQ Therapeutics, Inc. [Member] | Biotechnology Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 14.25%   13.25%      
Margin 5.75%   4.75%      
Floor 9.75%   8.50%      
Ceiling 0.00%   0.00%      
ETP 3.75%   5.50%      
Maturity Date Sep. 01, 2026   May 01, 2027      
Principal Amount $ 3,750   $ 6,250      
Investments at cost 3,726   6,199      
Investments at fair value $ 3,726   $ 6,199      
Term Loan, Prime Index Two [Member] | BrightInsight, Inc. [Member] | Software, Healthcare Information and Service [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 14.00%   14.00%      
Margin 5.50%   5.50%      
Floor 9.50%   9.50%      
Ceiling 0.00%   0.00%      
ETP 3.00%   3.00%      
Maturity Date Aug. 01, 2027   Aug. 01, 2027      
Principal Amount $ 3,500   $ 3,500      
Investments at cost 3,470   3,463      
Investments at fair value $ 3,470   $ 3,463      
Term Loan, Prime Index Two [Member] | Havenly, Inc. [Member] | Consumer-related Technologies [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 13.50%   13.50%      
Margin 5.00%   5.00%      
Floor 5.00%   5.00%      
Ceiling 0.00%   0.00%      
ETP 10.40%   4.00%      
Maturity Date Mar. 01, 2027   Mar. 01, 2027      
Principal Amount $ 3,000   $ 3,000      
Investments at cost 2,354   2,131      
Investments at fair value $ 2,354   $ 2,131      
Term Loan, Prime Index Two [Member] | Temperpack Technologies, Inc [Member] | Other Sustainability Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 15.25%   15.25%      
Margin 6.75%   6.75%      
Floor 10.00%   10.00%      
Ceiling 0.00%   0.00%      
ETP 2.50%   2.50%      
Maturity Date Apr. 01, 2028   Apr. 01, 2028      
Principal Amount $ 3,750   $ 3,750      
Investments at cost 3,700   3,694      
Investments at fair value $ 3,700   $ 3,694      
Term Loan, Prime Index Two [Member] | Elligo Health Research, Inc [Member] | Software, Healthcare Information and Service [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 12.00%   12.00%      
Margin 3.50%   3.50%      
Floor 11.75%   11.75%      
Ceiling 0.00%   0.00%      
ETP 4.00%   4.00%      
Maturity Date Oct. 01, 2027   Oct. 01, 2027      
Principal Amount $ 5,000   $ 5,000      
Investments at cost 4,935   4,925      
Investments at fair value $ 4,935   $ 4,925      
Term Loan, Prime Index Two [Member] | Divergent Technologies, Inc. [Member] | Consumer-related Technologies [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate     11.25%      
Margin     6.00%      
Floor     9.50%      
Ceiling     11.25%      
ETP     3.00%      
Maturity Date     Jul. 01, 2027      
Principal Amount     $ 1,250      
Investments at cost     1,242      
Investments at fair value     $ 1,242      
Term Loan, Prime Index Two [Member] | Lemongrass Holdings, Inc [Member] | Software Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 15.00%   15.00%      
Margin 6.50%   6.50%      
Floor 9.75%   9.75%      
Ceiling 0.00%   0.00%      
ETP 2.50%   2.50%      
Maturity Date Mar. 01, 2026   Mar. 01, 2026      
Principal Amount $ 2,187   $ 2,500      
Investments at cost 2,179   2,486      
Investments at fair value $ 2,179   $ 2,486      
Term Loan, Prime Index Two [Member] | Native Microbials, Inc. [Member] | Biotechnology Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 14.25%   13.75%      
Margin 5.75%   5.25%      
Floor 9.75%   8.50%      
Ceiling 0.00%   0.00%      
ETP 3.75%   5.00%      
Maturity Date Sep. 01, 2026   Nov. 01, 2026      
Principal Amount $ 3,750   $ 2,500      
Investments at cost 3,726   2,478      
Investments at fair value $ 3,726   $ 2,478      
Term Loan, Prime Index Two [Member] | Greenlight Biosciences, Inc [Member] | Biotechnology Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 13.75%   14.25%      
Margin 5.25%   5.75%      
Floor 8.50%   9.00%      
Ceiling 0.00%   0.00%      
ETP 5.00%   3.00%      
Maturity Date Nov. 01, 2026   Jul. 01, 2025      
Principal Amount $ 2,417   $ 1,500      
Investments at cost 2,403   1,458      
Investments at fair value $ 2,403   $ 1,436      
Term Loan, Prime Index Two [Member] | PDS Biotechnology Corporation [Member] | Biotechnology Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 13.86%   14.25%      
Margin 5.36%   5.75%      
Floor 9.50%   9.75%      
Ceiling 0.00%   0.00%      
ETP 4.30%   3.75%      
Maturity Date Jan. 01, 2027   Sep. 01, 2026      
Principal Amount $ 3,482   $ 3,750      
Investments at cost 3,399   3,717      
Investments at fair value 3,206   $ 3,717      
Term Loan, Prime Index Two [Member] | SafelyYou, Inc [Member] | Software, Healthcare Information and Service [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate     11.75%      
Margin     3.25%      
Floor     11.00%      
Ceiling     0.00%      
ETP     5.00%      
Maturity Date     Jun. 01, 2027      
Principal Amount     $ 5,000      
Investments at cost 4,931   4,918      
Investments at fair value $ 4,931   $ 4,918      
Term Loan, Prime Index Two [Member] | Lytics, Inc. [Member] | Software Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 14.50%   14.50%      
Margin 6.00%   6.00%      
Floor 14.25%   14.25%      
Ceiling 0.00%   0.00%      
ETP 5.00%   4.00%      
Maturity Date Dec. 01, 2026   Dec. 01, 2026      
Principal Amount $ 1,250   $ 1,250      
Investments at cost 1,240   1,237      
Investments at fair value $ 1,240   $ 1,188      
Term Loan, Prime Index Two [Member] | Provivi, Inc. [Member] | Biotechnology Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 13.86%   13.86%      
Margin 5.36%   5.36%      
Floor 9.50%   9.50%      
Ceiling 0.00%   0.00%      
ETP 4.31%   5.50%      
Maturity Date Jan. 01, 2027   Dec. 01, 2024      
Principal Amount $ 1,741   $ 4,666      
Investments at cost 1,696   4,579      
Investments at fair value $ 1,598   $ 4,414      
Term Loan, Prime Index Two [Member] | Spineology, Inc [Member] | Medical Device Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 15.50%   15.50%      
Margin 7.00%   7.00%      
Floor 10.25%   10.25%      
Ceiling 0.00%   0.00%      
ETP 1.00%   1.00%      
Maturity Date Apr. 01, 2026   Apr. 01, 2026      
Principal Amount $ 2,500   $ 2,500      
Investments at cost 2,488   2,489      
Investments at fair value $ 2,488   $ 2,489      
Term Loan, Prime Index Two [Member] | MyForest Foods Co [Member] | Consumer-related Technologies [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 15.25%   15.25%      
Margin 6.75%   6.75%      
Floor 10.00%   10.00%      
Ceiling 0.00%   0.00%      
ETP 3.00%   3.00%      
Maturity Date Oct. 01, 2025   Oct. 01, 2025      
Principal Amount $ 1,333   $ 1,833      
Investments at cost 1,328   1,824      
Investments at fair value $ 1,328   $ 1,824      
Term Loan, Prime Index Two [Member] | Stealth BioTherapeutics Inc. [Member] | Biotechnology Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 9.00%   14.00%      
Margin 0.00%   5.50%      
Floor 0.00%   8.75%      
Ceiling 0.00%   0.00%      
ETP 18.00%   6.00%      
Maturity Date Apr. 01, 2028   Oct. 01, 2025      
Principal Amount $ 2,500   $ 2,125      
Investments at cost 2,474   2,096      
Investments at fair value $ 2,354   $ 2,096      
Term Loan, Prime Index Two [Member] | Mirantis, Inc [Member] | Software Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 12.00%   12.00%      
Margin 3.50%   3.50%      
Floor 11.75%   11.75%      
Ceiling 0.00%   0.00%      
ETP 4.00%   4.00%      
Maturity Date Oct. 01, 2028   Oct. 01, 2028      
Principal Amount $ 5,000   $ 5,000      
Investments at cost 4,924   4,915      
Investments at fair value $ 4,924   $ 4,915      
Term Loan, Prime Index Two [Member] | Tallac Therapeutics, Inc [Member] | Biotechnology Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 9.00%   12.75%      
Margin 0.00%   4.25%      
Floor 0.00%   12.25%      
Ceiling 0.00%   0.00%      
ETP 18.00%   4.00%      
Maturity Date Apr. 01, 2028   Aug. 01, 2027      
Principal Amount $ 200   $ 2,500      
Investments at cost 187   2,459      
Investments at fair value $ 178   $ 2,459      
Term Loan, Prime Index Two [Member] | Swift Health Systems Inc. [Member] | Medical Device Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 13.75%   13.75%      
Margin 5.25%   5.25%      
Floor 9.00%   9.00%      
Ceiling 0.00%   0.00%      
ETP 5.00%   5.00%      
Maturity Date Jul. 01, 2027   Jul. 01, 2027      
Principal Amount $ 3,500   $ 3,500      
Investments at cost 3,473   3,467      
Investments at fair value $ 876   $ 3,467      
Term Loan, Prime Index Two [Member] | NextCar Holding Company, Inc [Member] | Consumer-related Technologies [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 14.25%   14.25%      
Margin 5.75%   5.75%      
Floor 9.00%   9.00%      
Ceiling 0.00%   0.00%      
ETP 5.25%   5.25%      
Maturity Date Oct. 31, 2023   Oct. 31, 2023      
Principal Amount $ 2,890   $ 2,301      
Investments at cost 2,786   2,301      
Investments at fair value $ 1,665   $ 2,007      
Term Loan, Prime Index Two [Member] | Noodle Partners, Inc. [Member] | Software Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 13.50%   13.50%      
Margin 5.00%   5.00%      
Floor 12.00%   12.00%      
Ceiling 0.00%   0.00%      
ETP 3.00%   3.00%      
Maturity Date Mar. 01, 2027   Mar. 01, 2027      
Principal Amount $ 5,000   $ 5,000      
Investments at cost 4,953   4,942      
Investments at fair value $ 4,953   $ 4,942      
Term Loan, Prime Index Two [Member] | VERO Biotech LLC [Member] | Medical Device Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 12.25%   12.25%      
Margin 3.75%   3.75%      
Floor 12.25%   12.25%      
Ceiling 0.00%   0.00%      
ETP 4.00%   4.00%      
Maturity Date Jan. 01, 2029   Jan. 01, 2029      
Principal Amount $ 10,000   $ 10,000      
Investments at cost 9,803   9,784      
Investments at fair value $ 9,803   $ 9,784      
Term Loan, Prime Index Two [Member] | Candesant Biomedical, Inc. [Member] | Medical Device Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 11.25%   12.00%      
Margin 2.75%   3.50%      
Floor 9.25%   11.50%      
Ceiling 0.00%   0.00%      
ETP 4.00%   5.00%      
Maturity Date Mar. 01, 2029   Sep. 01, 2027      
Principal Amount $ 5,000   $ 2,500      
Investments at cost 4,935   2,454      
Investments at fair value $ 4,935   $ 2,454      
Term Loan, Prime Index Two [Member] | Ceribell, Inc. [Member] | Medical Device Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 14.00%   12.00%      
Margin 5.50%   3.50%      
Floor 8.75%   8.25%      
Ceiling 0.00%   0.00%      
ETP 6.00%   5.50%      
Maturity Date Aug. 01, 2026   Oct. 01, 2024      
Principal Amount $ 2,014   $ 3,750      
Investments at cost 1,997   3,738      
Investments at fair value $ 1,997   $ 3,738      
Term Loan, Prime Index Two [Member] | Slingshot Aerospace, Inc. [Member] | Software Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 14.25%   14.25%      
Margin 5.75%   5.75%      
Floor 9.75%   9.75%      
Ceiling 0.00%   0.00%      
ETP 5.00%   5.00%      
Maturity Date Aug. 01, 2026   Aug. 01, 2026      
Principal Amount $ 5,000   $ 5,000      
Investments at cost 4,971   4,959      
Investments at fair value $ 4,971   $ 4,959      
Term Loan, Prime Index Two [Member] | Cognoa, Inc. [Member] | Medical Device Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 13.59%   14.00%      
Margin 5.09%   5.50%      
Floor 10.00%   8.75%      
Ceiling 0.00%   0.00%      
ETP 5.00%   6.00%      
Maturity Date Mar. 01, 2024   Aug. 01, 2026      
Principal Amount $ 533   $ 2,292      
Investments at cost 533   2,273      
Investments at fair value $ 533   $ 2,273      
Term Loan, Prime Index Two [Member] | Optoro, Inc. [Member] | Consumer-related Technologies [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate     14.75%      
Margin     6.25%      
Floor     9.50%      
Ceiling     0.00%      
ETP     4.00%      
Maturity Date     Jul. 01, 2028      
Principal Amount     $ 1,875      
Investments at cost     1,787      
Investments at fair value     $ 1,787      
Term Loan, Prime Index Two [Member] | Conventus Orthopaedics, Inc [Member] | Medical Device Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate     13.32%      
Margin     4.82%      
Floor     9.25%      
Ceiling     0.00%      
ETP     10.36%      
Maturity Date     Jul. 01, 2025      
Principal Amount     $ 3,960      
Investments at cost     3,923      
Investments at fair value     $ 3,923      
Term Loan, Prime Index Two [Member] | CSA Medical, Inc [Member] | Medical Device Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate     13.59%      
Margin     5.09%      
Floor     10.00%      
Ceiling     0.00%      
ETP     5.00%      
Maturity Date     Jan. 01, 2024      
Principal Amount     $ 33      
Investments at cost     33      
Investments at fair value     $ 33      
Term Loan, Prime Index Two [Member] | Standvast Holdings, LLC [Member] | Consumer-related Technologies [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 12.75%          
Margin 4.25%          
Floor 12.75%          
Ceiling 0.00%          
ETP 3.00%          
Maturity Date Jun. 01, 2028          
Principal Amount $ 2,500          
Investments at cost 2,415          
Investments at fair value $ 2,415          
Term Loan, Prime Index Two [Member] | Supply Network Visibility Holdings, LLC [Member] | Software Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 12.75%   12.75%      
Margin 4.25%   4.25%      
Floor 12.00%   12.00%      
Ceiling 0.00%   0.00%      
ETP 2.50%   2.50%      
Maturity Date Jun. 01, 2028   Jun. 01, 2028      
Principal Amount $ 3,500   $ 3,500      
Investments at cost 3,490   3,489      
Investments at fair value $ 3,490   $ 3,489      
Term Loan, Prime Index Two [Member] | Unagi, Inc [Member] | Consumer-related Technologies [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 16.25%   16.25%      
Margin 7.75%   7.75%      
Floor 11.00%   11.00%      
Ceiling 0.00%   0.00%      
ETP 0.00%   0.00%      
Maturity Date May 01, 2027   May 01, 2027      
Principal Amount $ 653   $ 602      
Investments at cost 543   543      
Investments at fair value $ 285   $ 436      
Term Loan, Prime Index Two [Member] | MicroTransponder, Inc. [Member] | Medical Device Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 12.25%   12.25%      
Margin 3.75%   3.75%      
Floor 12.25%   12.25%      
Ceiling 0.00%   0.00%      
ETP 3.50%   3.50%      
Maturity Date Jan. 01, 2029   Jan. 01, 2029      
Principal Amount $ 3,750   $ 3,750      
Investments at cost 3,694   3,689      
Investments at fair value $ 3,694   $ 3,689      
Term Loan, Prime Index Two [Member] | Liqid, Inc [Member] | Networking Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate     14.75%      
Margin     6.25%      
Floor     9.50%      
Ceiling     0.00%      
ETP     4.00%      
Maturity Date     Sep. 01, 2024      
Principal Amount     $ 1,500      
Investments at cost     1,481      
Investments at fair value     $ 1,481      
Term Loan, Prime Index Two [Member] | Viken Detection Corporation [Member] | Software Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 12.50%   12.50%      
Margin 4.00%   4.00%      
Floor 11.75%   11.75%      
Ceiling 0.00%   0.00%      
ETP 3.50%   3.50%      
Maturity Date Jun. 01, 2027   Jun. 01, 2027      
Principal Amount $ 2,500   $ 2,500      
Investments at cost 2,472   2,467      
Investments at fair value $ 2,472   $ 2,467      
Term Loan, Prime Index Two [Member] | Britecore Holdings, Inc. [Member] | Software Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 14.00%   14.00%      
Margin 5.50%   5.50%      
Floor 14.00%   14.00%      
Ceiling 0.00%   0.00%      
ETP 3.00%   3.00%      
Maturity Date Oct. 01, 2028   Oct. 01, 2028      
Principal Amount $ 2,500   $ 2,500      
Investments at cost 2,469   2,466      
Investments at fair value 2,469   2,466      
Common Stock Warrants [Member] | Axiom Space, Inc [Member] | Communications Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost 46   47      
Investments at fair value $ 62   $ 61      
Number of Shares (in shares) 1,991   1,991      
Common Stock Warrants [Member] | DropOff, Inc. [Member] | Software Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 455   $ 455      
Investments at fair value $ 63   $ 46      
Number of Shares (in shares) 516,732   516,732      
Common Stock Warrants [Member] | Avalo Therapeutics, Inc. [Member] | Biotechnology Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 311   $ 311      
Investments at fair value $ 0   $ 0      
Number of Shares (in shares) 117   117      
Common Stock Warrants [Member] | LiquiGlide, Inc [Member] | Other Sustainability Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost     $ 39      
Investments at fair value     $ 50      
Number of Shares (in shares)     61,359      
Common Stock Warrants [Member] | Parse Biosciences, Inc. [Member] | Diagnostics Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 71   $ 70      
Investments at fair value $ 70   $ 70      
Number of Shares (in shares) 32,244   32,244      
Common Stock Warrants [Member] | Nexii Building Solutions, Inc [Member] | Other Sustainability Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 490   $ 490      
Investments at fair value $ 0   $ 0      
Number of Shares (in shares) 215,171   215,171      
Common Stock Warrants [Member] | Imunon, Inc [Member] | Biotechnology Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 64   $ 65      
Investments at fair value $ 0   $ 0      
Number of Shares (in shares) 19,671   19,671      
Common Stock Warrants [Member] | Soli Organic, Inc [Member] | Other Sustainability Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 19          
Investments at fair value $ 19          
Number of Shares (in shares) 296          
Common Stock Warrants [Member] | Havenly, Inc. [Member] | Consumer-related Technologies [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 3,178   $ 2,947      
Investments at fair value $ 2,490   $ 2,259      
Number of Shares (in shares) 1,446,429   1,312,500      
Common Stock Warrants [Member] | Mustang Bio, Inc [Member] | Biotechnology Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 146   $ 146      
Investments at fair value $ 0   $ 0      
Number of Shares (in shares) 16,611   16,611      
Common Stock Warrants [Member] | PDS Biotechnology Corporation [Member] | Biotechnology Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 160   $ 160      
Investments at fair value $ 157   $ 606      
Number of Shares (in shares) 299,848   299,848      
Common Stock Warrants [Member] | Provivi, Inc. [Member] | Biotechnology Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 278   $ 278      
Investments at fair value $ 0   $ 0      
Number of Shares (in shares) 175,098   175,098      
Common Stock Warrants [Member] | Stealth BioTherapeutics Inc. [Member] | Biotechnology Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 265   $ 264      
Investments at fair value $ 117   $ 113      
Number of Shares (in shares) 318,181   318,181      
Common Stock Warrants [Member] | Mirantis, Inc [Member] | Software Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 223   $ 223      
Investments at fair value $ 255   $ 247      
Number of Shares (in shares) 948,275   948,275      
Common Stock Warrants [Member] | Aterian, Inc [Member] | Consumer-related Technologies [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost     $ 195      
Investments at fair value     $ 0      
Number of Shares (in shares)     76,923      
Common Stock Warrants [Member] | NextCar Holding Company, Inc [Member] | Consumer-related Technologies [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 188   $ 188      
Investments at fair value $ 0   $ 0      
Number of Shares (in shares) 12,618   12,618      
Common Stock Warrants [Member] | Xeris Pharmaceuticals, Inc [Member] | Biotechnology Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 73   $ 72      
Investments at fair value $ 29   $ 33      
Number of Shares (in shares) 126,000   126,000      
Common Stock Warrants [Member] | AccuVein Inc [Member] | Medical Device Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 7   $ 24      
Investments at fair value $ 0   $ 0      
Number of Shares (in shares) 271   1,175      
Common Stock Warrants [Member] | CZV, Inc [Member] | Consumer-related Technologies [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 79   $ 81      
Investments at fair value $ 74   $ 71      
Number of Shares (in shares) 65,569   65,569      
Common Stock Warrants [Member] | Cognoa, Inc. [Member] | Medical Device Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 0          
Investments at fair value $ 1          
Number of Shares (in shares) 30,585          
Common Stock Warrants [Member] | CVRx, Inc [Member] | Medical Device Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 76   $ 76      
Investments at fair value $ 142   $ 980      
Number of Shares (in shares) 47,410   47,410      
Common Stock Warrants [Member] | Halio, Inc [Member] | Power Management Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 1,585   $ 1,585      
Investments at fair value $ 2,700   $ 2,700      
Number of Shares (in shares) 38,241,466   38,241,466      
Common Stock Warrants [Member] | E La Carte, Inc [Member] | Software Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 60   $ 60      
Investments at fair value $ 0   $ 0      
Number of Shares (in shares) 147,361   147,361      
Preferred Stock Warrants [Member] | Castle Creek Biosciences, Inc [Member] | Biotechnology Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 214   $ 214      
Investments at fair value $ 225   $ 318      
Number of Shares (in shares) 7,404   7,404      
Preferred Stock Warrants [Member] | Scientia Vascular, Inc. [Member] | Medical Device Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 103   $ 103      
Investments at fair value $ 341   $ 215      
Number of Shares (in shares) 34,410   34,410      
Preferred Stock Warrants [Member] | New Aerofarms, Inc. assignee of Aerofarms, Inc [Member] | Other Sustainability Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 81   $ 81      
Investments at fair value $ 74   $ 72      
Number of Shares (in shares) 400,000   400,000      
Preferred Stock Warrants [Member] | Hound Labs, Inc. [Member] | Diagnostics Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 46   $ 46      
Investments at fair value $ 0   $ 12      
Number of Shares (in shares) 171,370   171,370      
Preferred Stock Warrants [Member] | LiquiGlide, Inc [Member] | Other Sustainability Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 39          
Investments at fair value $ 30          
Number of Shares (in shares) 61,359          
Preferred Stock Warrants [Member] | Parse Biosciences, Inc. [Member] | Diagnostics Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 166   $ 166      
Investments at fair value $ 173   $ 166      
Number of Shares (in shares) 184,253   184,253      
Preferred Stock Warrants [Member] | CAMP NYC, Inc [Member] | Consumer-related Technologies [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 36   $ 22      
Investments at fair value $ 41   $ 27      
Number of Shares (in shares) 112,356   75,997      
Preferred Stock Warrants [Member] | Kodiak Robotics, Inc. [Member] | Software Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 273   $ 273      
Investments at fair value $ 7   $ 13      
Number of Shares (in shares) 639,918   639,918      
Preferred Stock Warrants [Member] | Emalex Biosciences, Inc. [Member] | Biotechnology Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 176   $ 178      
Investments at fair value $ 136   $ 246      
Number of Shares (in shares) 110,402   110,402      
Preferred Stock Warrants [Member] | Sonex Health, Inc. [Member] | Medical Device Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 275   $ 275      
Investments at fair value $ 278   $ 269      
Number of Shares (in shares) 2,637,133   2,637,043      
Preferred Stock Warrants [Member] | Clara Foods Co [Member] | Consumer-related Technologies [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 30   $ 29      
Investments at fair value $ 125   $ 122      
Number of Shares (in shares) 46,745   46,745      
Preferred Stock Warrants [Member] | Soli Organic, Inc [Member] | Other Sustainability Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 382   $ 214      
Investments at fair value $ 516   $ 340      
Number of Shares (in shares) 1,076   681      
Preferred Stock Warrants [Member] | Kate Farms, Inc [Member] | Other Healthcare Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 102   $ 102      
Investments at fair value $ 979   $ 1,366      
Number of Shares (in shares) 82,965   82,965      
Preferred Stock Warrants [Member] | KSQ Therapeutics, Inc. [Member] | Biotechnology Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 49   $ 50      
Investments at fair value $ 55   $ 53      
Number of Shares (in shares) 48,076   48,076      
Preferred Stock Warrants [Member] | BrightInsight, Inc. [Member] | Software Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 167   $ 167      
Investments at fair value $ 0   $ 0      
Number of Shares (in shares) 85,066   85,066      
Preferred Stock Warrants [Member] | Temperpack Technologies, Inc [Member] | Other Sustainability Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 178   $ 175      
Investments at fair value $ 89   $ 80      
Number of Shares (in shares) 49,693   46,311      
Preferred Stock Warrants [Member] | Elligo Health Research, Inc [Member] | Software Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 191   $ 192      
Investments at fair value $ 95   $ 99      
Number of Shares (in shares) 652,250   652,250      
Preferred Stock Warrants [Member] | Divergent Technologies, Inc. [Member] | Consumer-related Technologies [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 454   $ 94      
Investments at fair value $ 622   $ 250      
Number of Shares (in shares) 53,264   37,282      
Preferred Stock Warrants [Member] | Lemongrass Holdings, Inc [Member] | Software Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 34   $ 32      
Investments at fair value $ 138   $ 120      
Number of Shares (in shares) 101,308   101,308      
Preferred Stock Warrants [Member] | Native Microbials, Inc. [Member] | Biotechnology Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 64   $ 64      
Investments at fair value $ 64   $ 157      
Number of Shares (in shares) 103,679   103,679      
Preferred Stock Warrants [Member] | Medsphere Systems Corporation [Member] | Software Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 60   $ 60      
Investments at fair value $ 0   $ 108      
Number of Shares (in shares) 7,097,792   7,097,792      
Preferred Stock Warrants [Member] | SafelyYou, Inc [Member] | Software Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 163   $ 163      
Investments at fair value $ 51   $ 50      
Number of Shares (in shares) 150,353   150,353      
Preferred Stock Warrants [Member] | Lytics, Inc. [Member] | Software Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 43   $ 43      
Investments at fair value $ 0   $ 1      
Number of Shares (in shares) 85,543   85,543      
Preferred Stock Warrants [Member] | Provivi, Inc. [Member] | Biotechnology Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 312   $ 312      
Investments at fair value $ 229   $ 225      
Number of Shares (in shares) 709,981   691,895      
Preferred Stock Warrants [Member] | Intelepeer Holdings, Inc [Member] | Communications Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 138   $ 138      
Investments at fair value $ 2,838   $ 3,036      
Number of Shares (in shares) 2,936,535   2,936,535      
Preferred Stock Warrants [Member] | PebblePost, Inc [Member] | Communications Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 92   $ 92      
Investments at fair value $ 132   $ 131      
Number of Shares (in shares) 598,850   598,850      
Preferred Stock Warrants [Member] | Spineology, Inc [Member] | Medical Device Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 21          
Investments at fair value $ 21          
Number of Shares (in shares) 128,848          
Preferred Stock Warrants [Member] | MyForest Foods Co [Member] | Consumer-related Technologies [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 28   $ 29      
Investments at fair value $ 27   $ 56      
Number of Shares (in shares) 250   250      
Preferred Stock Warrants [Member] | Alula Holdings, Inc [Member] | Consumer-related Technologies [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 93   $ 93      
Investments at fair value $ 8   $ 0      
Number of Shares (in shares) 20,000   20,000      
Preferred Stock Warrants [Member] | Tallac Therapeutics, Inc [Member] | Biotechnology Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 195   $ 194      
Investments at fair value $ 173   $ 172      
Number of Shares (in shares) 1,600,002   1,600,002      
Preferred Stock Warrants [Member] | Swift Health Systems Inc. [Member] | Medical Device Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 71   $ 71      
Investments at fair value $ 0   $ 1      
Number of Shares (in shares) 135,484   135,484      
Preferred Stock Warrants [Member] | NextCar Holding Company, Inc [Member] | Consumer-related Technologies [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 9   $ 9      
Investments at fair value $ 0   $ 0      
Number of Shares (in shares) 1,224,752   1,224,752      
Preferred Stock Warrants [Member] | Caastle, Inc [Member] | Consumer-related Technologies [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost     $ 65      
Investments at fair value     $ 1,055      
Number of Shares (in shares)     268,591      
Preferred Stock Warrants [Member] | Aerin Medical, Inc [Member] | Medical Device Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 66   $ 66      
Investments at fair value $ 1,036   $ 1,199      
Number of Shares (in shares) 1,818,183   1,818,183      
Preferred Stock Warrants [Member] | Noodle Partners, Inc. [Member] | Software Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 116   $ 115      
Investments at fair value $ 0   $ 2      
Number of Shares (in shares) 84,037   84,037      
Preferred Stock Warrants [Member] | Aerobiotix, LLC [Member] | Medical Device Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 48   $ 48      
Investments at fair value $ 10   $ 9      
Number of Shares (in shares) 8,800   8,800      
Preferred Stock Warrants [Member] | VERO Biotech LLC [Member] | Medical Device Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 432   $ 432      
Investments at fair value $ 355   $ 379      
Number of Shares (in shares) 4,109   4,109      
Preferred Stock Warrants [Member] | Canary Medical Inc. [Member] | Medical Device Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 86   $ 86      
Investments at fair value $ 1,280   $ 1,305      
Number of Shares (in shares) 12,153   12,153      
Preferred Stock Warrants [Member] | Candesant Biomedical, Inc. [Member] | Medical Device Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 152   $ 152      
Investments at fair value $ 139   $ 135      
Number of Shares (in shares) 93,336   93,336      
Preferred Stock Warrants [Member] | Reputation Institute, Inc [Member] | Software Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 63   $ 56      
Investments at fair value $ 94   $ 80      
Number of Shares (in shares) 4,104   3,731      
Preferred Stock Warrants [Member] | Ceribell, Inc. [Member] | Medical Device Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 139   $ 69      
Investments at fair value $ 237   $ 229      
Number of Shares (in shares) 219,866   145,483      
Preferred Stock Warrants [Member] | Slingshot Aerospace, Inc. [Member] | Software Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 123   $ 123      
Investments at fair value $ 72   $ 135      
Number of Shares (in shares) 309,208   309,208      
Preferred Stock Warrants [Member] | Cognoa, Inc. [Member] | Medical Device Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 162   $ 149      
Investments at fair value $ 213   $ 167      
Number of Shares (in shares) 4,635,992   4,106,174      
Preferred Stock Warrants [Member] | Optoro, Inc. [Member] | Consumer-related Technologies [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 181   $ 182      
Investments at fair value $ 145   $ 145      
Number of Shares (in shares) 11,550   11,550      
Preferred Stock Warrants [Member] | Primary Kids, Inc [Member] | Consumer-related Technologies [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 57   $ 57      
Investments at fair value $ 594   $ 591      
Number of Shares (in shares) 553,778   553,778      
Preferred Stock Warrants [Member] | Conventus Orthopaedics, Inc [Member] | Medical Device Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 256   $ 221      
Investments at fair value $ 208   $ 206      
Number of Shares (in shares) 9,313,541   7,972,222      
Preferred Stock Warrants [Member] | Quip NYC Inc [Member] | Consumer-related Technologies [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 325   $ 325      
Investments at fair value $ 0   $ 533      
Number of Shares (in shares) 6,191   6,191      
Preferred Stock Warrants [Member] | CSA Medical, Inc [Member] | Medical Device Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 174   $ 174      
Investments at fair value $ 135   $ 124      
Number of Shares (in shares) 2,839,739   3,341,376      
Preferred Stock Warrants [Member] | Standvast Holdings, LLC [Member] | Consumer-related Technologies [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 275          
Investments at fair value $ 273          
Number of Shares (in shares) 1,225,492          
Preferred Stock Warrants [Member] | Supply Network Visibility Holdings, LLC [Member] | Software Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 65   $ 64      
Investments at fair value $ 78   $ 135      
Number of Shares (in shares) 682   682      
Preferred Stock Warrants [Member] | Unagi, Inc [Member] | Consumer-related Technologies [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 32   $ 32      
Investments at fair value $ 0   $ 0      
Number of Shares (in shares) 171,081   171,081      
Preferred Stock Warrants [Member] | InfoBionic, Inc [Member] | Medical Device Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 124   $ 124      
Investments at fair value $ 50   $ 26      
Number of Shares (in shares) 2,010,424   2,010,424      
Preferred Stock Warrants [Member] | Lotame Solutions, Inc. [Member] | Software Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 18   $ 18      
Investments at fair value $ 42   $ 42      
Number of Shares (in shares) 71,305   71,305      
Preferred Stock Warrants [Member] | Updater, Inc [Member] | Consumer-related Technologies [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 34   $ 34      
Investments at fair value $ 27   $ 0      
Number of Shares (in shares) 108,333   114,659      
Preferred Stock Warrants [Member] | Magnolia Medical Technologies, Inc [Member] | Medical Device Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 194   $ 194      
Investments at fair value $ 381   $ 368      
Number of Shares (in shares) 809,931   809,931      
Preferred Stock Warrants [Member] | CPG Beyond, Inc [Member] | Data Storage Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 242   $ 242      
Investments at fair value $ 300   $ 294      
Number of Shares (in shares) 500,000   500,000      
Preferred Stock Warrants [Member] | Meditrina, Inc [Member] | Medical Device Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 83   $ 83      
Investments at fair value $ 41   $ 93      
Number of Shares (in shares) 233,993   233,993      
Preferred Stock Warrants [Member] | Silk, Inc [Member] | Data Storage Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 175   $ 175      
Investments at fair value $ 128   $ 124      
Number of Shares (in shares) 394,110   394,110      
Preferred Stock Warrants [Member] | MicroTransponder, Inc. [Member] | Medical Device Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 47   $ 47      
Investments at fair value $ 49   $ 47      
Number of Shares (in shares) 103,172   103,172      
Preferred Stock Warrants [Member] | Liqid, Inc [Member] | Networking Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 364   $ 364      
Investments at fair value $ 162   $ 210      
Number of Shares (in shares) 344,102   344,102      
Preferred Stock Warrants [Member] | Global Worldwide LLC [Member] | Internet and Media Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 75   $ 75      
Investments at fair value $ 62   $ 63      
Number of Shares (in shares) 245,810   245,810      
Preferred Stock Warrants [Member] | Viken Detection Corporation [Member] | Software Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 120   $ 120      
Investments at fair value $ 212   $ 105      
Number of Shares (in shares) 345,443   345,443      
Preferred Stock Warrants [Member] | Rocket Lawyer Incorporated [Member] | Internet and Media Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 92   $ 92      
Investments at fair value $ 324   $ 318      
Number of Shares (in shares) 261,721   261,721      
Preferred Stock Warrants [Member] | Skillshare, Inc [Member] | Internet and Media Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 162   $ 162      
Investments at fair value $ 817   $ 1,201      
Number of Shares (in shares) 139,074   139,074      
Preferred Stock Warrants [Member] | Britecore Holdings, Inc. [Member] | Software Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 98   $ 98      
Investments at fair value $ 182   $ 174      
Number of Shares (in shares) 161,215   161,215      
Preferred Stock Warrants [Member] | Avalanche Technology, Inc [Member] | Semiconductor Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 45   $ 45      
Investments at fair value $ 0   $ 0      
Number of Shares (in shares) 5,938   5,938      
Preferred Stock Warrants [Member] | Everstream Holdings, LLC [Member] | Software Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 70   $ 70      
Investments at fair value $ 65   $ 63      
Number of Shares (in shares) 350,000   350,000      
Preferred Stock Warrants [Member] | Revinate Holdings, Inc [Member] | Software Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 44   $ 44      
Investments at fair value $ 94   $ 91      
Number of Shares (in shares) 682,034   682,034      
Preferred Stock Warrants [Member] | SIGNiX, Inc [Member] | Software Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 225   $ 225      
Investments at fair value $ 0   $ 0      
Number of Shares (in shares) 186,235   186,235      
Preferred Stock Warrants [Member] | Topia Mobility, Inc [Member] | Software Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 138   $ 138      
Investments at fair value $ 0   $ 0      
Number of Shares (in shares) 3,049,607   3,049,607      
Preferred Stock Warrants [Member] | xAd, Inc [Member] | Software Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 177   $ 177      
Investments at fair value $ 8   $ 5      
Number of Shares (in shares) 4,343,348   4,343,348      
Common Stock [Member] | Castle Creek Biosciences, Inc [Member] | Biotechnology Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 250   $ 250      
Investments at fair value $ 250   $ 250      
Number of Shares (in shares) 1,162   1,162      
Common Stock [Member] | Evelo Biosciences, Inc. [Member] | Biotechnology Sector [Member] | Investment, Affiliated Issuer, Noncontrolled [Member]            
Investments at cost $ 5,000   $ 5,000      
Investments at fair value $ 0   $ 132      
Number of Shares (in shares) 2,164,502   2,164,502      
Common Stock [Member] | Better Place Forests Co. [Member] | Technology Sector [Member] | Investment, Affiliated Issuer, Controlled [Member]            
Investments at cost $ 2,060   $ 2,061      
Investments at fair value $ 0   $ 2,165      
Number of Shares (in shares) 2,278,272   2,278,272      
Common Stock [Member] | Aulea Medical, Inc. [Member] | Medical Device Sector [Member] | Investment, Affiliated Issuer, Noncontrolled [Member]            
Investments at cost $ 0   $ 0      
Investments at fair value $ 0   $ 0      
Number of Shares (in shares) 660,537   660,537      
Common Stock [Member] | Emalex Biosciences, Inc. [Member] | Biotechnology Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 355   $ 355      
Investments at fair value $ 355   $ 355      
Number of Shares (in shares) 32,831   32,831      
Common Stock [Member] | Lumithera, Inc. [Member] | Medical Device Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 2,000   $ 2,000      
Investments at fair value $ 1,700   $ 1,700      
Number of Shares (in shares) 392,651   392,651      
Common Stock [Member] | Cadrenal Therapeutics, Inc. [Member] | Biotechnology Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 0   $ 0      
Investments at fair value $ 283   $ 443      
Number of Shares (in shares) 600,000   600,000      
Common Stock [Member] | Getaround, Inc [Member] | Consumer-related Technologies [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 253   $ 253      
Investments at fair value $ 12   $ 20      
Number of Shares (in shares) 87,082   87,082      
Common Stock [Member] | SnagAJob.com, Inc [Member] | Consumer-related Technologies [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 10   $ 9      
Investments at fair value $ 81   $ 83      
Number of Shares (in shares) 82,974   82,974      
Common Stock [Member] | Tigo Energy, Inc. [Member] | Other Sustainability Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 111   $ 111      
Investments at fair value $ 10   $ 13      
Number of Shares (in shares) 5,205   5,205      
Restricted Short Term Investments [Member]            
Investments at cost $ 3,221   $ 2,642      
Investments at fair value 3,221   2,642      
Restricted Short Term Investments [Member] | U S Bank Money Market Deposit Account [Member]            
Investments at cost 3,221   2,642      
Investments at fair value $ 3,221   $ 2,642      
Term Loan, Prime Index Three [Member] | Castle Creek Biosciences, Inc [Member] | Biotechnology Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 13.25%   13.25%      
Margin 4.75%   4.75%      
Floor 9.55%   9.55%      
Ceiling 13.50%   13.50%      
ETP 5.50%   5.50%      
Maturity Date May 01, 2026   May 01, 2026      
Principal Amount $ 2,750   $ 3,000      
Investments at cost 2,742   2,987      
Investments at fair value $ 2,742   $ 2,987      
Term Loan, Prime Index Three [Member] | Scientia Vascular, Inc. [Member] | Medical Device Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 13.75%   13.75%      
Margin 5.25%   5.25%      
Floor 9.00%   9.00%      
Ceiling 0.00%   0.00%      
ETP 5.00%   5.00%      
Maturity Date Jan. 01, 2027   Jan. 01, 2027      
Principal Amount $ 5,000   $ 5,000      
Investments at cost 4,953   4,943      
Investments at fair value $ 4,953   $ 4,943      
Term Loan, Prime Index Three [Member] | Axiom Space, Inc [Member] | Communications Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 14.50%   14.50%      
Margin 6.00%   6.00%      
Floor 9.25%   9.25%      
Ceiling 0.00%   0.00%      
ETP 2.50%   2.50%      
Maturity Date Jun. 01, 2026   Jun. 01, 2026      
Principal Amount $ 5,000   $ 6,250      
Investments at cost 4,975   6,218      
Investments at fair value $ 4,975   $ 6,218      
Term Loan, Prime Index Three [Member] | DropOff, Inc. [Member] | Software Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 15.00%   15.00%      
Margin 6.50%   6.50%      
Floor 9.75%   9.75%      
Ceiling 0.00%   0.00%      
ETP 3.50%   3.50%      
Maturity Date Aug. 01, 2026   Aug. 01, 2026      
Principal Amount $ 2,607   $ 2,548      
Investments at cost 2,576   2,507      
Investments at fair value $ 2,345   $ 2,375      
Term Loan, Prime Index Three [Member] | Evelo Biosciences, Inc. [Member] | Biotechnology Sector [Member] | Investment, Affiliated Issuer, Noncontrolled [Member]            
Cash Rate 12.75%   12.75%      
Margin 4.25%   4.25%      
Floor 11.00%   11.00%      
Ceiling 0.00%   0.00%      
ETP 4.25%   2.27%      
Maturity Date Jan. 01, 2028   Jan. 01, 2028      
Principal Amount $ 3,539   $ 3,319      
Investments at cost 3,137   3,137      
Investments at fair value $ 2,101   $ 133      
Term Loan, Prime Index Three [Member] | Better Place Forests Co. [Member] | Consumer-related Technologies [Member] | Investment, Affiliated Issuer, Controlled [Member]            
Cash Rate 12.25%          
Margin 3.75%          
Floor 12.00%          
Ceiling 0.00%          
ETP 0.00%          
Maturity Date Aug. 01, 2025          
Principal Amount $ 505          
Investments at cost 505          
Investments at fair value $ 420          
Term Loan, Prime Index Three [Member] | Hound Labs, Inc. [Member] | Diagnostics Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 14.50%   14.50%      
Margin 6.00%   6.00%      
Floor 9.25%   9.25%      
Ceiling 0.00%   0.00%      
ETP 3.50%   3.50%      
Maturity Date Jun. 01, 2026   Jun. 01, 2026      
Principal Amount $ 3,214   $ 5,000      
Investments at cost 3,193   4,968      
Investments at fair value $ 2,248   $ 4,968      
Term Loan, Prime Index Three [Member] | Kodiak Robotics, Inc. [Member] | Software Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 14.00%   14.00%      
Margin 5.50%   5.50%      
Floor 10.25%   10.25%      
Ceiling 0.00%   0.00%      
ETP 4.00%   4.00%      
Maturity Date Apr. 01, 2026   Apr. 01, 2026      
Principal Amount $ 5,000   $ 5,000      
Investments at cost 4,964   4,947      
Investments at fair value $ 4,964   $ 4,947      
Term Loan, Prime Index Three [Member] | Emalex Biosciences, Inc. [Member] | Biotechnology Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 14.25%   13.22%      
Margin 5.75%   4.72%      
Floor 9.00%   9.75%      
Ceiling 0.00%   0.00%      
ETP 3.00%   5.00%      
Maturity Date Jul. 01, 2025   Nov. 01, 2025      
Principal Amount $ 1,083   $ 5,000      
Investments at cost 1,055   4,950      
Investments at fair value $ 1,055   $ 4,950      
Term Loan, Prime Index Three [Member] | Nexii Building Solutions, Inc [Member] | Other Sustainability Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 15.50%   15.50%      
Margin 7.00%   7.00%      
Floor 10.25%   10.25%      
Ceiling 0.00%   0.00%      
ETP 2.50%   2.50%      
Maturity Date Mar. 31, 2024   Mar. 31, 2024      
Principal Amount $ 8,871   $ 8,425      
Investments at cost 7,996   8,229      
Investments at fair value $ 2,129   $ 4,481      
Term Loan, Prime Index Three [Member] | Sonex Health, Inc. [Member] | Medical Device Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 12.00%   12.00%      
Margin 3.50%   3.50%      
Floor 11.75%   11.75%      
Ceiling 0.00%   0.00%      
ETP 8.00%   8.00%      
Maturity Date Sep. 01, 2027   Sep. 01, 2027      
Principal Amount $ 5,000   $ 5,000      
Investments at cost 4,953   4,946      
Investments at fair value $ 4,953   $ 4,946      
Term Loan, Prime Index Three [Member] | Soli Organic, Inc [Member] | Other Sustainability Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 15.25%   15.25%      
Margin 6.75%   6.75%      
Floor 10.00%   10.00%      
Ceiling 0.00%   0.00%      
ETP 2.75%   2.75%      
Maturity Date May 01, 2026   May 01, 2026      
Principal Amount $ 5,000   $ 5,000      
Investments at cost 4,924   4,956      
Investments at fair value $ 4,924   $ 4,956      
Term Loan, Prime Index Three [Member] | BrightInsight, Inc. [Member] | Software, Healthcare Information and Service [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 14.00%   14.00%      
Margin 5.50%   5.50%      
Floor 9.50%   9.50%      
Ceiling 0.00%   0.00%      
ETP 3.00%   3.00%      
Maturity Date Aug. 01, 2027   Aug. 01, 2027      
Principal Amount $ 3,500   $ 3,500      
Investments at cost 3,470   3,463      
Investments at fair value $ 3,470   $ 3,463      
Term Loan, Prime Index Three [Member] | Havenly, Inc. [Member] | Consumer-related Technologies [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 12.00%   12.00%      
Margin 3.50%   3.50%      
Floor 10.50%   10.50%      
Ceiling 0.00%   0.00%      
ETP 7.78%   7.78%      
Maturity Date Feb. 01, 2028   Feb. 01, 2028      
Principal Amount $ 2,813   $ 2,813      
Investments at cost 2,813   2,813      
Investments at fair value $ 2,813   $ 2,813      
Term Loan, Prime Index Three [Member] | Temperpack Technologies, Inc [Member] | Other Sustainability Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 15.25%   15.25%      
Margin 6.75%   6.75%      
Floor 10.00%   10.00%      
Ceiling 0.00%   0.00%      
ETP 2.50%   2.50%      
Maturity Date Apr. 01, 2028   Apr. 01, 2028      
Principal Amount $ 7,500   $ 7,500      
Investments at cost 7,393   7,379      
Investments at fair value $ 7,393   $ 7,379      
Term Loan, Prime Index Three [Member] | Elligo Health Research, Inc [Member] | Software, Healthcare Information and Service [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 12.00%   12.00%      
Margin 3.50%   3.50%      
Floor 11.75%   11.75%      
Ceiling 0.00%   0.00%      
ETP 4.00%   4.00%      
Maturity Date Oct. 01, 2027   Oct. 01, 2027      
Principal Amount $ 5,000   $ 5,000      
Investments at cost 4,935   4,925      
Investments at fair value $ 4,935   $ 4,925      
Term Loan, Prime Index Three [Member] | Divergent Technologies, Inc. [Member] | Consumer-related Technologies [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate     11.25%      
Margin     6.00%      
Floor     9.50%      
Ceiling     11.25%      
ETP     3.00%      
Maturity Date     Jul. 01, 2027      
Principal Amount     $ 3,750      
Investments at cost     3,726      
Investments at fair value     $ 3,726      
Term Loan, Prime Index Three [Member] | PDS Biotechnology Corporation [Member] | Biotechnology Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 13.86%   14.25%      
Margin 5.36%   5.75%      
Floor 9.50%   9.75%      
Ceiling 0.00%   0.00%      
ETP 4.31%   3.75%      
Maturity Date Jan. 01, 2027   Sep. 01, 2026      
Principal Amount $ 1,741   $ 3,750      
Investments at cost 1,696   3,717      
Investments at fair value $ 1,598   $ 3,717      
Term Loan, Prime Index Three [Member] | Lytics, Inc. [Member] | Software Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 14.50%   14.50%      
Margin 6.00%   6.00%      
Floor 14.25%   14.25%      
Ceiling 0.00%   0.00%      
ETP 5.00%   4.00%      
Maturity Date Apr. 01, 2027   Apr. 01, 2027      
Principal Amount $ 1,000   $ 1,000      
Investments at cost 995   994      
Investments at fair value $ 995   $ 954      
Term Loan, Prime Index Three [Member] | Provivi, Inc. [Member] | Biotechnology Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 13.86%   13.86%      
Margin 5.36%   5.36%      
Floor 9.50%   9.50%      
Ceiling 0.00%   0.00%      
ETP 4.31%   5.50%      
Maturity Date Jan. 01, 2027   Dec. 01, 2024      
Principal Amount $ 1,741   $ 2,333      
Investments at cost 1,695   2,281      
Investments at fair value $ 1,597   $ 2,199      
Term Loan, Prime Index Three [Member] | Mirantis, Inc [Member] | Software Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 12.00%   12.00%      
Margin 3.50%   3.50%      
Floor 11.75%   11.75%      
Ceiling 0.00%   0.00%      
ETP 4.00%   4.00%      
Maturity Date Oct. 01, 2028   Oct. 01, 2028      
Principal Amount $ 5,000   $ 5,000      
Investments at cost 4,924   4,915      
Investments at fair value $ 4,924   $ 4,915      
Term Loan, Prime Index Three [Member] | Swift Health Systems Inc. [Member] | Medical Device Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 13.75%   13.75%      
Margin 5.25%   5.25%      
Floor 9.00%   9.00%      
Ceiling 0.00%   0.00%      
ETP 5.00%   5.00%      
Maturity Date Jul. 01, 2027   Jul. 01, 2027      
Principal Amount $ 3,500   $ 3,500      
Investments at cost 3,462   3,456      
Investments at fair value $ 874   $ 3,456      
Term Loan, Prime Index Three [Member] | NextCar Holding Company, Inc [Member] | Consumer-related Technologies [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 14.25%   14.25%      
Margin 5.75%   5.75%      
Floor 9.00%   9.00%      
Ceiling 0.00%   0.00%      
ETP 5.25%   5.25%      
Maturity Date Oct. 31, 2023   Oct. 31, 2023      
Principal Amount $ 2,312   $ 2,876      
Investments at cost 2,229   2,876      
Investments at fair value $ 1,332   $ 2,509      
Term Loan, Prime Index Three [Member] | NextCar Holding Company, Inc [Member] | Networking Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 14.75%          
Margin 6.25%          
Floor 9.50%          
Ceiling 0.00%          
ETP 4.00%          
Maturity Date Sep. 01, 2024          
Principal Amount $ 333          
Investments at cost 329          
Investments at fair value $ 329          
Term Loan, Prime Index Three [Member] | Noodle Partners, Inc. [Member] | Software Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 13.50%   13.50%      
Margin 5.00%   5.00%      
Floor 12.00%   12.00%      
Ceiling 0.00%   0.00%      
ETP 3.00%   3.00%      
Maturity Date     Mar. 01, 2027      
Principal Amount $ 5,000   $ 5,000      
Investments at cost 4,953   4,942      
Investments at fair value $ 4,953   $ 4,942      
Term Loan, Prime Index Three [Member] | VERO Biotech LLC [Member] | Medical Device Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 12.25%   12.25%      
Margin 3.75%   3.75%      
Floor 12.25%   12.25%      
Ceiling 0.00%   0.00%      
ETP 4.00%   4.00%      
Maturity Date Jan. 01, 2029   Jan. 01, 2029      
Principal Amount $ 5,000   $ 5,000      
Investments at cost 4,902   4,892      
Investments at fair value $ 4,902   $ 4,892      
Term Loan, Prime Index Three [Member] | Candesant Biomedical, Inc. [Member] | Medical Device Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 11.25%   12.00%      
Margin 2.75%   3.50%      
Floor 9.25%   11.50%      
Ceiling 0.00%   0.00%      
ETP 4.00%   5.00%      
Maturity Date Mar. 01, 2029   Sep. 01, 2027      
Principal Amount $ 4,000   $ 2,500      
Investments at cost 3,948   2,454      
Investments at fair value $ 3,948   $ 2,454      
Term Loan, Prime Index Three [Member] | Ceribell, Inc. [Member] | Medical Device Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 13.32%   12.00%      
Margin 4.82%   3.50%      
Floor 9.25%   8.25%      
Ceiling 0.00%   0.00%      
ETP 10.36%   5.50%      
Maturity Date Jul. 01, 2025   Oct. 01, 2024      
Principal Amount $ 3,766   $ 1,875      
Investments at cost 3,729   1,866      
Investments at fair value $ 3,729   $ 1,866      
Term Loan, Prime Index Three [Member] | Slingshot Aerospace, Inc. [Member] | Software Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate     14.25%      
Margin 5.75%   5.75%      
Floor 9.75%   9.75%      
Ceiling 0.00%   0.00%      
ETP 5.00%   5.00%      
Maturity Date Aug. 01, 2026   Aug. 01, 2026      
Principal Amount $ 5,000   $ 5,000      
Investments at cost 4,971   4,959      
Investments at fair value $ 4,971   $ 4,959      
Term Loan, Prime Index Three [Member] | Optoro, Inc. [Member] | Consumer-related Technologies [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 14.75%          
Margin 6.25%          
Floor 9.50%          
Ceiling 0.00%          
ETP 4.00%          
Maturity Date Jul. 01, 2028          
Principal Amount $ 1,875          
Investments at cost 1,796          
Investments at fair value $ 1,796          
Term Loan, Prime Index Three [Member] | CSA Medical, Inc [Member] | Medical Device Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate     13.59%      
Margin     5.09%      
Floor     10.00%      
Ceiling     0.00%      
ETP     5.00%      
Maturity Date     Mar. 01, 2024      
Principal Amount     $ 800      
Investments at cost     794      
Investments at fair value     $ 794      
Term Loan, Prime Index Three [Member] | Supply Network Visibility Holdings, LLC [Member] | Software Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 12.75%   12.75%      
Margin 4.25%   4.25%      
Floor 12.00%   12.00%      
Ceiling 0.00%   0.00%      
ETP 2.50%   2.50%      
Maturity Date Jun. 01, 2028   Jun. 01, 2028      
Principal Amount $ 2,500   $ 2,500      
Investments at cost 2,493   2,492      
Investments at fair value $ 2,493   $ 2,492      
Term Loan, Prime Index Three [Member] | Unagi, Inc [Member] | Consumer-related Technologies [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 16.25%   16.25%      
Margin 7.75%   7.75%      
Floor 11.00%   11.00%      
Ceiling 0.00%   0.00%      
ETP 0.00%   0.00%      
Maturity Date May 01, 2027   May 01, 2027      
Principal Amount $ 653   $ 602      
Investments at cost 543   543      
Investments at fair value $ 285   $ 436      
Term Loan, Prime Index Three [Member] | Liqid, Inc [Member] | Networking Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 14.75%   14.75%      
Margin 6.25%   6.25%      
Floor 9.50%   9.50%      
Ceiling 0.00%   0.00%      
ETP 4.00%   4.00%      
Maturity Date Sep. 01, 2024   Sep. 01, 2024      
Principal Amount $ 167   $ 750      
Investments at cost 164   740      
Investments at fair value $ 164   $ 740      
Term Loan, Prime Index Three [Member] | Viken Detection Corporation [Member] | Software Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 12.50%   12.50%      
Margin 4.00%   4.00%      
Floor 11.75%   11.75%      
Ceiling 0.00%   0.00%      
ETP 3.50%   3.50%      
Maturity Date Jun. 01, 2027   Jun. 01, 2027      
Principal Amount $ 2,500   $ 2,500      
Investments at cost 2,472   2,467      
Investments at fair value $ 2,472   $ 2,467      
Term Loan, Prime Index Three [Member] | Britecore Holdings, Inc. [Member] | Software Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 14.00%   14.00%      
Margin 5.50%   5.50%      
Floor 14.00%   14.00%      
Ceiling 0.00%   0.00%      
ETP 3.00%   3.00%      
Maturity Date Oct. 01, 2028   Oct. 01, 2028      
Principal Amount $ 2,500   $ 2,500      
Investments at cost 2,469   2,466      
Investments at fair value 2,469   2,466      
Preferred Stock [Member] | Axiom Space, Inc [Member] | Communications Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost 261   261      
Investments at fair value $ 306   $ 306      
Number of Shares (in shares) 1,810   1,810      
Preferred Stock [Member] | Better Place Forests Co. [Member] | Technology Sector [Member] | Investment, Affiliated Issuer, Controlled [Member]            
Investments at cost $ 2,500   $ 1,250      
Investments at fair value $ 0   $ 859      
Number of Shares (in shares) 5,350,142   3,124,448      
Preferred Stock [Member] | NextCar Holding Company, Inc [Member] | Consumer-related Technologies [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 89   $ 89      
Investments at fair value $ 0   $ 89      
Number of Shares (in shares) 2,688,971   2,688,971      
Preferred Stock [Member] | Caastle, Inc [Member] | Consumer-related Technologies [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 2,681          
Investments at fair value $ 2,681          
Number of Shares (in shares) 242,180          
Preferred Stock [Member] | Decisyon, Inc [Member] | Software Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 2,800   $ 2,800      
Investments at fair value $ 1,281   $ 1,281      
Number of Shares (in shares) 280,000   280,000      
Preferred Stock [Member] | Lotame Solutions, Inc. [Member] | Software Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost $ 4   $ 4      
Investments at fair value $ 193   $ 193      
Number of Shares (in shares) 66,127   66,127      
Term Loan, Prime Index, Four [Member] | Castle Creek Biosciences, Inc [Member] | Biotechnology Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 13.25%   13.25%      
Margin 4.75%   4.75%      
Floor 9.55%   9.55%      
Ceiling 13.50%   13.50%      
ETP 5.50%   5.50%      
Maturity Date May 01, 2026   May 01, 2026      
Principal Amount $ 4,583   $ 5,000      
Investments at cost 4,570   4,979      
Investments at fair value $ 4,570   $ 4,979      
Term Loan, Prime Index, Four [Member] | Scientia Vascular, Inc. [Member] | Medical Device Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 13.75%   13.75%      
Margin 5.25%   5.25%      
Floor 9.00%   9.00%      
Ceiling 0.00%   0.00%      
ETP 5.00%   5.00%      
Maturity Date Jan. 01, 2027   Jan. 01, 2027      
Principal Amount $ 5,000   $ 5,000      
Investments at cost 4,918   4,900      
Investments at fair value $ 4,918   $ 4,900      
Term Loan, Prime Index, Four [Member] | Evelo Biosciences, Inc. [Member] | Biotechnology Sector [Member] | Investment, Affiliated Issuer, Noncontrolled [Member]            
Cash Rate 12.75%   12.75%      
Margin 4.25%   4.25%      
Floor 11.00%   11.00%      
Ceiling 0.00%   0.00%      
ETP 4.25%   2.27%      
Maturity Date Jan. 01, 2028   Jan. 01, 2028      
Principal Amount $ 3,539   $ 3,319      
Investments at cost 3,137   3,137      
Investments at fair value $ 2,101   $ 133      
Term Loan, Prime Index, Four [Member] | Better Place Forests Co. [Member] | Consumer-related Technologies [Member] | Investment, Affiliated Issuer, Controlled [Member]            
Cash Rate 12.25%          
Margin 3.75%          
Floor 12.00%          
Ceiling 0.00%          
ETP 0.00%          
Maturity Date Aug. 01, 2025          
Principal Amount $ 501          
Investments at cost 501          
Investments at fair value $ 415          
Term Loan, Prime Index, Four [Member] | Kodiak Robotics, Inc. [Member] | Software Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 14.00%   14.00%      
Margin 5.50%   5.50%      
Floor 10.25%   10.25%      
Ceiling 0.00%   0.00%      
ETP 4.00%   4.00%      
Maturity Date Apr. 01, 2026   Apr. 01, 2026      
Principal Amount $ 5,000   $ 5,000      
Investments at cost 4,964   4,947      
Investments at fair value $ 4,964   $ 4,947      
Term Loan, Prime Index, Four [Member] | Emalex Biosciences, Inc. [Member] | Biotechnology Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 13.25%   13.22%      
Margin 4.75%   4.72%      
Floor 8.50%   9.75%      
Ceiling 0.00%   0.00%      
ETP 5.50%   5.00%      
Maturity Date May 01, 2027   May 01, 2026      
Principal Amount $ 6,250   $ 5,000      
Investments at cost 6,210   4,949      
Investments at fair value $ 6,210   $ 4,949      
Term Loan, Prime Index, Four [Member] | Nexii Building Solutions, Inc [Member] | Other Sustainability Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 15.50%   15.50%      
Margin 7.00%   7.00%      
Floor 10.25%   10.25%      
Ceiling 0.00%   0.00%      
ETP 2.50%   2.50%      
Maturity Date Mar. 31, 2024   Mar. 31, 2024      
Principal Amount $ 5,914   $ 5,617      
Investments at cost 5,325   5,480      
Investments at fair value $ 1,418   $ 2,984      
Term Loan, Prime Index, Four [Member] | Sonex Health, Inc. [Member] | Medical Device Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 12.00%   12.00%      
Margin 3.50%   3.50%      
Floor 11.75%   11.75%      
Ceiling 0.00%   0.00%      
ETP 8.00%   8.00%      
Maturity Date Sep. 01, 2027   Sep. 01, 2027      
Principal Amount $ 5,000   $ 5,000      
Investments at cost 4,953   4,946      
Investments at fair value $ 4,953   $ 4,946      
Term Loan, Prime Index, Four [Member] | Soli Organic, Inc [Member] | Other Sustainability Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 15.25%   15.25%      
Margin 6.75%   6.75%      
Floor 10.00%   10.00%      
Ceiling 0.00%   0.00%      
ETP 2.75%   2.75%      
Maturity Date May 01, 2026   May 01, 2026      
Principal Amount $ 2,500   $ 2,500      
Investments at cost 2,462   2,478      
Investments at fair value $ 2,462   $ 2,478      
Term Loan, Prime Index, Four [Member] | BrightInsight, Inc. [Member] | Software, Healthcare Information and Service [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 14.00%   14.00%      
Margin 5.50%   5.50%      
Floor 9.50%   9.50%      
Ceiling 0.00%   0.00%      
ETP 3.00%   3.00%      
Maturity Date Apr. 01, 2028   Apr. 01, 2028      
Principal Amount $ 2,750   $ 2,750      
Investments at cost 2,715   2,710      
Investments at fair value $ 2,715   $ 2,710      
Term Loan, Prime Index, Four [Member] | Havenly, Inc. [Member] | Consumer-related Technologies [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 12.00%   12.00%      
Margin 3.50%   3.50%      
Floor 10.50%   10.50%      
Ceiling 0.00%   0.00%      
ETP 7.78%   7.78%      
Maturity Date Feb. 01, 2028   Feb. 01, 2028      
Principal Amount $ 2,813   $ 2,813      
Investments at cost 2,813   2,813      
Investments at fair value $ 2,813   $ 2,813      
Term Loan, Prime Index, Four [Member] | Temperpack Technologies, Inc [Member] | Other Sustainability Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 15.25%   15.25%      
Margin 6.75%   6.75%      
Floor 10.00%   10.00%      
Ceiling 0.00%   0.00%      
ETP 2.50%   2.50%      
Maturity Date Apr. 01, 2028   Apr. 01, 2028      
Principal Amount $ 3,750   $ 3,750      
Investments at cost 3,697   3,690      
Investments at fair value $ 3,697   $ 3,690      
Term Loan, Prime Index, Four [Member] | Elligo Health Research, Inc [Member] | Software, Healthcare Information and Service [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 12.00%   12.00%      
Margin 3.50%   3.50%      
Floor 11.75%   11.75%      
Ceiling 0.00%   0.00%      
ETP 4.00%   4.00%      
Maturity Date Oct. 01, 2027   Oct. 01, 2027      
Principal Amount $ 5,000   $ 5,000      
Investments at cost 4,935   4,925      
Investments at fair value $ 4,935   $ 4,925      
Term Loan, Prime Index, Four [Member] | Divergent Technologies, Inc. [Member] | Consumer-related Technologies [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate     11.25%      
Margin     6.00%      
Floor     9.50%      
Ceiling     11.25%      
ETP     3.00%      
Maturity Date     Jul. 01, 2027      
Principal Amount     $ 1,250      
Investments at cost     1,242      
Investments at fair value     $ 1,242      
Term Loan, Prime Index, Four [Member] | Provivi, Inc. [Member] | Biotechnology Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 13.86%   13.86%      
Margin 5.36%   5.36%      
Floor 9.50%   9.50%      
Ceiling 0.00%   0.00%      
ETP 4.31%   5.50%      
Maturity Date Jan. 01, 2027   Dec. 01, 2024      
Principal Amount $ 1,741   $ 2,333      
Investments at cost 1,695   2,281      
Investments at fair value $ 1,597   $ 2,199      
Term Loan, Prime Index, Four [Member] | Mirantis, Inc [Member] | Software Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 12.00%   12.00%      
Margin 3.50%   3.50%      
Floor 11.75%   11.75%      
Ceiling 0.00%   0.00%      
ETP 4.00%   4.00%      
Maturity Date Oct. 01, 2028   Oct. 01, 2028      
Principal Amount $ 5,000   $ 5,000      
Investments at cost 4,924   4,915      
Investments at fair value $ 4,924   $ 4,915      
Term Loan, Prime Index, Four [Member] | Swift Health Systems Inc. [Member] | Medical Device Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 13.75%   13.75%      
Margin 5.25%   5.25%      
Floor 9.00%   9.00%      
Ceiling 0.00%   0.00%      
ETP 5.00%   5.00%      
Maturity Date Jul. 01, 2027   Jul. 01, 2027      
Principal Amount $ 3,500   $ 3,500      
Investments at cost 3,462   3,456      
Investments at fair value $ 874   $ 3,456      
Term Loan, Prime Index, Four [Member] | NextCar Holding Company, Inc [Member] | Consumer-related Technologies [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 14.25%   14.25%      
Margin 5.75%   5.75%      
Floor 9.00%   9.00%      
Ceiling 0.00%   0.00%      
ETP 5.25%   5.25%      
Maturity Date Oct. 31, 2023   Oct. 31, 2023      
Principal Amount $ 2,890   $ 3,451      
Investments at cost 2,786   3,451      
Investments at fair value $ 1,665   $ 3,011      
Term Loan, Prime Index, Four [Member] | VERO Biotech LLC [Member] | Medical Device Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 12.25%   12.25%      
Margin 3.75%   3.75%      
Floor 12.25%   12.25%      
Ceiling 0.00%   0.00%      
ETP 4.00%   4.00%      
Maturity Date Jan. 01, 2029   Jan. 01, 2029      
Principal Amount $ 2,500   $ 2,500      
Investments at cost 2,451   2,446      
Investments at fair value $ 2,451   $ 2,446      
Term Loan, Prime Index, Four [Member] | Ceribell, Inc. [Member] | Medical Device Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate     12.00%      
Margin     3.50%      
Floor     8.25%      
Ceiling     0.00%      
ETP     5.50%      
Maturity Date     Oct. 01, 2024      
Principal Amount     $ 1,875      
Investments at cost     1,866      
Investments at fair value     $ 1,866      
Term Loan, Prime Index, Four [Member] | Slingshot Aerospace, Inc. [Member] | Software Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 14.25%   14.25%      
Margin 5.75%   5.75%      
Floor 9.75%   9.75%      
Ceiling 0.00%   0.00%      
ETP 5.00%   5.00%      
Maturity Date Aug. 01, 2026   Aug. 01, 2026      
Principal Amount $ 5,000   $ 5,000      
Investments at cost 4,971   4,959      
Investments at fair value $ 4,971   $ 4,959      
Term Loan, Prime Index, Four [Member] | Supply Network Visibility Holdings, LLC [Member] | Software Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 12.75%   12.75%      
Margin 4.25%   4.25%      
Floor 12.00%   12.00%      
Ceiling 0.00%   0.00%      
ETP 2.50%   2.50%      
Maturity Date Jun. 01, 2028   Jun. 01, 2028      
Principal Amount $ 1,500   $ 1,500      
Investments at cost 1,496   1,495      
Investments at fair value $ 1,496   $ 1,495      
Term Loan, Prime Index, Four [Member] | Liqid, Inc [Member] | Networking Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 14.75%   14.75%      
Margin 6.25%   6.25%      
Floor 9.50%   9.50%      
Ceiling 0.00%   0.00%      
ETP 4.00%   4.00%      
Maturity Date Sep. 01, 2024   Sep. 01, 2024      
Principal Amount $ 167   $ 667      
Investments at cost 164   656      
Investments at fair value $ 164   $ 656      
Term Loan, Prime Index, Four [Member] | Britecore Holdings, Inc. [Member] | Software Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 14.00%   14.00%      
Margin 5.50%   5.50%      
Floor 14.00%   14.00%      
Ceiling 0.00%   0.00%      
ETP 3.00%   3.00%      
Maturity Date Oct. 01, 2028   Oct. 01, 2028      
Principal Amount $ 2,500   $ 2,500      
Investments at cost 2,469   2,466      
Investments at fair value 2,469   2,466      
Equity Securities [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost 8,814   6,132      
Investments at fair value 7,152   4,733      
Equity Securities [Member] | Technology Sector [Member] | Investment, Affiliated Issuer, Controlled [Member]            
Investments at cost 4,560   3,311      
Investments at fair value 0   3,024      
Equity Securities [Member] | Life Science [Member] | Investment, Affiliated Issuer, Noncontrolled [Member]            
Investments at cost 5,000   5,000      
Investments at fair value $ 0   $ 132      
Number of Shares (in shares)        
Term Loan, Prime Index, Five [Member] | Castle Creek Biosciences, Inc [Member] | Biotechnology Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 13.25%   13.25%      
Margin 4.75%   4.75%      
Floor 9.55%   9.55%      
Ceiling 13.50%   13.50%      
ETP 5.50%   5.50%      
Maturity Date May 01, 2026   May 01, 2026      
Principal Amount $ 4,583   $ 5,000      
Investments at cost 4,570   4,979      
Investments at fair value $ 4,570   $ 4,979      
Term Loan, Prime Index, Five [Member] | Evelo Biosciences, Inc. [Member] | Biotechnology Sector [Member] | Investment, Affiliated Issuer, Noncontrolled [Member]            
Cash Rate 12.75%   12.75%      
Margin 4.25%   4.25%      
Floor 11.00%   11.00%      
Ceiling 0.00%   0.00%      
ETP 4.25%   2.27%      
Maturity Date Jan. 01, 2028   Jan. 01, 2028      
Principal Amount $ 2,359   $ 2,213      
Investments at cost 2,091   2,091      
Investments at fair value $ 1,401   $ 88      
Term Loan, Prime Index, Five [Member] | Nexii Building Solutions, Inc [Member] | Other Sustainability Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 15.50%   15.50%      
Margin 7.00%   7.00%      
Floor 10.25%   10.25%      
Ceiling 0.00%   0.00%      
ETP 2.50%   2.50%      
Maturity Date Mar. 31, 2024   Mar. 31, 2024      
Principal Amount $ 5,914   $ 5,617      
Investments at cost 5,325   5,480      
Investments at fair value $ 1,418   $ 2,984      
Term Loan, Prime Index, Five [Member] | Sonex Health, Inc. [Member] | Medical Device Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 12.00%          
Margin 3.50%          
Floor 11.75%          
Ceiling 0.00%          
ETP 8.00%          
Maturity Date Apr. 01, 2028          
Principal Amount $ 3,750          
Investments at cost 3,708          
Investments at fair value $ 3,708          
Term Loan, Prime Index, Five [Member] | Soli Organic, Inc [Member] | Other Sustainability Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 14.00%   14.00%      
Margin 5.50%   5.50%      
Floor 11.75%   11.75%      
Ceiling 0.00%   0.00%      
ETP 2.75%   2.75%      
Maturity Date Dec. 01, 2026   Dec. 01, 2026      
Principal Amount $ 5,000   $ 5,000      
Investments at cost 4,936   4,934      
Investments at fair value $ 4,936   $ 4,934      
Term Loan, Prime Index, Five [Member] | Temperpack Technologies, Inc [Member] | Other Sustainability Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 15.25%   15.25%      
Margin 6.75%   6.75%      
Floor 10.00%   10.00%      
Ceiling 0.00%   0.00%      
ETP 2.50%   2.50%      
Maturity Date Apr. 01, 2028   Apr. 01, 2028      
Principal Amount $ 3,750   $ 3,750      
Investments at cost 3,697   3,690      
Investments at fair value $ 3,697   $ 3,690      
Term Loan, Prime Index, Five [Member] | Divergent Technologies, Inc. [Member] | Consumer-related Technologies [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate     11.25%      
Margin     6.00%      
Floor     9.50%      
Ceiling     11.25%      
ETP     3.00%      
Maturity Date     Jul. 01, 2027      
Principal Amount     $ 3,750      
Investments at cost     3,726      
Investments at fair value     $ 3,726      
Term Loan, Prime Index, Five [Member] | Provivi, Inc. [Member] | Biotechnology Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 14.00%   13.86%      
Margin 5.50%   5.36%      
Floor 8.75%   9.50%      
Ceiling 0.00%   0.00%      
ETP 6.00%   5.50%      
Maturity Date Oct. 01, 2025   Dec. 01, 2024      
Principal Amount $ 1,619   $ 2,333      
Investments at cost 1,599   2,278      
Investments at fair value $ 1,599   $ 2,196      
Term Loan, Prime Index, Five [Member] | NextCar Holding Company, Inc [Member] | Consumer-related Technologies [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 14.25%   14.25%      
Margin 5.75%   5.75%      
Floor 9.00%   9.00%      
Ceiling 0.00%   0.00%      
ETP 5.25%   5.25%      
Maturity Date Oct. 31, 2023   Oct. 31, 2023      
Principal Amount $ 3,468   $ 2,876      
Investments at cost 3,343   2,876      
Investments at fair value $ 1,999   $ 2,510      
Term Loan, Prime Index, Five [Member] | Supply Network Visibility Holdings, LLC [Member] | Software Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 12.75%          
Margin 4.25%          
Floor 12.00%          
Ceiling 0.00%          
ETP 2.50%          
Maturity Date Jul. 01, 2029          
Principal Amount $ 5,000          
Investments at cost 4,983          
Investments at fair value $ 4,983          
Term Loan, Prime Index, Five [Member] | Liqid, Inc [Member] | Networking Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 14.75%   14.75%      
Margin 6.25%   6.25%      
Floor 9.50%   9.50%      
Ceiling 0.00%   0.00%      
ETP 4.00%   4.00%      
Maturity Date Sep. 01, 2024   Sep. 01, 2024      
Principal Amount $ 167   $ 750      
Investments at cost 161   729      
Investments at fair value $ 161   729      
Term Loan, Prime Index, Five [Member] | Britecore Holdings, Inc. [Member] | Software Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 14.00%          
Margin 5.50%          
Floor 14.00%          
Ceiling 0.00%          
ETP 3.00%          
Maturity Date Apr. 01, 2029          
Principal Amount $ 2,500          
Investments at cost 2,466          
Investments at fair value 2,466          
Other Investments [Member] | Life Science [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost 8,373   1,200      
Investments at fair value 3,347   200      
Other Investments [Member] | Life Science [Member] | Investment, Affiliated Issuer, Controlled [Member]            
Investments at cost 5,925   5,782      
Investments at fair value 5,836   6,230      
Other Investments [Member] | HIMV LLC [Member] | Life Science [Member] | Investment, Affiliated Issuer, Controlled [Member]            
Investments at cost 5,925   5,782      
Investments at fair value $ 5,836   $ 6,230      
Term Loan, Prime Index, Six [Member] | Castle Creek Biosciences, Inc [Member] | Biotechnology Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 13.25%   13.25%      
Margin 4.75%   4.75%      
Floor 9.55%   9.55%      
Ceiling 13.50%   13.50%      
ETP 5.50%   5.50%      
Maturity Date May 01, 2026   May 01, 2026      
Principal Amount $ 2,750   $ 3,000      
Investments at cost 2,742   2,987      
Investments at fair value $ 2,742   $ 2,987      
Term Loan, Prime Index, Six [Member] | Evelo Biosciences, Inc. [Member] | Biotechnology Sector [Member] | Investment, Affiliated Issuer, Noncontrolled [Member]            
Cash Rate 12.75%   12.75%      
Margin 4.25%   4.25%      
Floor 11.00%   11.00%      
Ceiling 0.00%   0.00%      
ETP 4.25%   2.27%      
Maturity Date Jan. 01, 2028   Jan. 01, 2028      
Principal Amount $ 2,359   $ 2,213      
Investments at cost 2,091   2,091      
Investments at fair value $ 1,401   $ 88      
Term Loan, Prime Index, Six [Member] | Nexii Building Solutions, Inc [Member] | Other Sustainability Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 15.50%   15.50%      
Margin 7.00%   7.00%      
Floor 10.25%   10.25%      
Ceiling 0.00%   0.00%      
ETP 0.00%   0.00%      
Maturity Date Mar. 31, 2024   Mar. 31, 2024      
Principal Amount $ 773   $ 735      
Investments at cost 705   726      
Investments at fair value $ 188   $ 395      
Term Loan, Prime Index, Six [Member] | Sonex Health, Inc. [Member] | Medical Device Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 12.00%          
Margin 3.50%          
Floor 11.75%          
Ceiling 0.00%          
ETP 8.00%          
Maturity Date Apr. 01, 2028          
Principal Amount $ 3,750          
Investments at cost 3,708          
Investments at fair value $ 3,708          
Term Loan, Prime Index, Six [Member] | Soli Organic, Inc [Member] | Other Sustainability Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 14.00%   14.00%      
Margin 5.50%   5.50%      
Floor 11.75%   11.75%      
Ceiling 0.00%   0.00%      
ETP 2.75%   2.75%      
Maturity Date Dec. 01, 2026   Dec. 01, 2026      
Principal Amount $ 2,500   $ 2,500      
Investments at cost 2,468   2,467      
Investments at fair value $ 2,468   $ 2,467      
Term Loan, Prime Index, Six [Member] | Temperpack Technologies, Inc [Member] | Other Sustainability Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 14.50%   14.50%      
Margin 6.00%   6.00%      
Floor 10.00%   10.00%      
Ceiling 0.00%   0.00%      
ETP 2.00%   2.00%      
Maturity Date Jan. 01, 2029   Jan. 01, 2029      
Principal Amount $ 4,500   $ 4,500      
Investments at cost 4,449   4,446      
Investments at fair value $ 4,449   $ 4,446      
Term Loan, Prime Index, Six [Member] | Divergent Technologies, Inc. [Member] | Consumer-related Technologies [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate     11.25%      
Margin     6.00%      
Floor     9.50%      
Ceiling     11.25%      
ETP     3.00%      
Maturity Date     Jul. 01, 2027      
Principal Amount     $ 1,250      
Investments at cost     1,242      
Investments at fair value     $ 1,242      
Term Loan, Prime Index, Six [Member] | Provivi, Inc. [Member] | Biotechnology Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 12.75%   13.86%      
Margin 4.25%   5.36%      
Floor 12.25%   9.50%      
Ceiling 0.00%   0.00%      
ETP 4.00%   5.50%      
Maturity Date Aug. 01, 2027   Dec. 01, 2024      
Principal Amount $ 2,500   $ 2,333      
Investments at cost 2,465   2,278      
Investments at fair value $ 2,465   $ 2,196      
Term Loan, Prime Index, Six [Member] | NextCar Holding Company, Inc [Member] | Consumer-related Technologies [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 14.25%   14.25%      
Margin 5.75%   5.75%      
Floor 9.00%   9.00%      
Ceiling 0.00%   0.00%      
ETP 5.25%   5.25%      
Maturity Date Oct. 31, 2023   Oct. 31, 2023      
Principal Amount $ 2,890   $ 2,876      
Investments at cost 2,786   2,876      
Investments at fair value $ 1,665   $ 2,510      
Term Loan, Prime Index, Seven [Member] | Nexii Building Solutions, Inc [Member] | Other Sustainability Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 15.50%   15.50%      
Margin 7.00%   7.00%      
Floor 10.25%   10.25%      
Ceiling 0.00%   0.00%      
ETP 0.00%   0.00%      
Maturity Date Mar. 31, 2024   Mar. 31, 2024      
Principal Amount $ 616   $ 586      
Investments at cost 561   578      
Investments at fair value $ 149   $ 315      
Term Loan, Prime Index, Seven [Member] | Sonex Health, Inc. [Member] | Medical Device Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 12.00%          
Margin 3.50%          
Floor 11.75%          
Ceiling 0.00%          
ETP 8.00%          
Maturity Date Apr. 01, 2028          
Principal Amount $ 3,750          
Investments at cost 3,708          
Investments at fair value $ 3,708          
Term Loan, Prime Index, Seven [Member] | Temperpack Technologies, Inc [Member] | Other Sustainability Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 14.50%   14.50%      
Margin 6.00%   6.00%      
Floor 10.00%   10.00%      
Ceiling 0.00%   0.00%      
ETP 2.00%   2.00%      
Maturity Date Jan. 01, 2029   Jan. 01, 2029      
Principal Amount $ 2,000   $ 2,000      
Investments at cost 1,977   1,976      
Investments at fair value $ 1,977   $ 1,976      
Term Loan, Prime Index, Seven [Member] | Divergent Technologies, Inc. [Member] | Consumer-related Technologies [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate     11.25%      
Margin     6.00%      
Floor     9.50%      
Ceiling     11.25%      
ETP     3.00%      
Maturity Date     Jan. 01, 2028      
Principal Amount     $ 3,750      
Investments at cost     3,712      
Investments at fair value     $ 3,712      
Term Loan, Prime Index, Seven [Member] | NextCar Holding Company, Inc [Member] | Consumer-related Technologies [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 14.25%   14.25%      
Margin 5.75%   5.75%      
Floor 9.00%   9.00%      
Ceiling 0.00%   0.00%      
ETP 5.25%   5.25%      
Maturity Date Oct. 31, 2023   Oct. 31, 2023      
Principal Amount $ 5,780   $ 5,752      
Investments at cost 5,572   5,752      
Investments at fair value $ 3,331   $ 5,018      
Term Loan, Prime Index, Eight [Member] | Nexii Building Solutions, Inc [Member] | Other Sustainability Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 15.50%   15.50%      
Margin 7.00%   7.00%      
Floor 10.25%   10.25%      
Ceiling 0.00%   0.00%      
ETP 0.00%   0.00%      
Maturity Date Mar. 31, 2024   Mar. 31, 2024      
Principal Amount $ 307   $ 292      
Investments at cost 280   288      
Investments at fair value $ 75   $ 157      
Term Loan, Prime Index, Eight [Member] | Sonex Health, Inc. [Member] | Medical Device Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 12.00%          
Margin 3.50%          
Floor 11.75%          
Ceiling 0.00%          
ETP 8.00%          
Maturity Date Apr. 01, 2028          
Principal Amount $ 3,750          
Investments at cost 3,708          
Investments at fair value $ 3,708          
Term Loan, Prime Index, Eight [Member] | Divergent Technologies, Inc. [Member] | Consumer-related Technologies [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate     11.25%      
Margin     6.00%      
Floor     9.50%      
Ceiling     11.25%      
ETP     3.00%      
Maturity Date     Jan. 01, 2028      
Principal Amount     $ 3,750      
Investments at cost     3,712      
Investments at fair value     $ 3,712      
Term Loan, Prime Index, Eight [Member] | NextCar Holding Company, Inc [Member] | Consumer-related Technologies [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 14.25%   14.25%      
Margin 5.75%   5.75%      
Floor 9.00%   9.00%      
Ceiling 0.00%   0.00%      
ETP 5.25%   5.25%      
Maturity Date Oct. 31, 2023   Oct. 31, 2023      
Principal Amount $ 2,890   $ 2,876      
Investments at cost 2,786   2,876      
Investments at fair value 1,665   2,510      
Royalty Agreement [Member] | Robin Healthcare, Inc. [Member] | Medical Device Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost 7,227          
Investments at fair value 3,247          
Royalty Agreement [Member] | Lumithera, Inc. [Member] | Medical Device Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost 1,146   1,200      
Investments at fair value 100   200      
Royalty Agreement [Member] | ZetrOZ, Inc [Member] | Medical Device Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Investments at cost 0   0      
Investments at fair value $ 0   $ 0      
Term Loan, Prime Index, Nine [Member] | Nexii Building Solutions, Inc [Member] | Other Sustainability Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 15.50%   15.50%      
Margin 7.00%   7.00%      
Floor 10.25%   10.25%      
Ceiling 0.00%   0.00%      
ETP 0.00%   0.00%      
Maturity Date Mar. 31, 2024   Mar. 31, 2024      
Principal Amount $ 305   $ 290      
Investments at cost 278   286      
Investments at fair value $ 74   $ 156      
Term Loan, Prime Index, Nine [Member] | Divergent Technologies, Inc. [Member] | Consumer-related Technologies [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate     11.25%      
Margin     6.00%      
Floor     9.50%      
Ceiling     11.25%      
ETP     3.00%      
Maturity Date     Apr. 01, 2028      
Principal Amount     $ 3,750      
Investments at cost     3,706      
Investments at fair value     $ 3,706      
Term Loan, Prime Index, Ten [Member] | Nexii Building Solutions, Inc [Member] | Other Sustainability Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 15.50%   15.50%      
Margin 7.00%   7.00%      
Floor 10.25%   10.25%      
Ceiling 0.00%   0.00%      
ETP 0.00%   0.00%      
Maturity Date Mar. 31, 2024   Mar. 31, 2024      
Principal Amount $ 183   $ 174      
Investments at cost 166   172      
Investments at fair value $ 44   $ 93      
Term Loan, Prime Index, Ten [Member] | Divergent Technologies, Inc. [Member] | Consumer-related Technologies [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate     11.25%      
Margin     6.00%      
Floor     9.50%      
Ceiling     11.25%      
ETP     3.00%      
Maturity Date     Jul. 01, 2028      
Principal Amount     $ 3,750      
Investments at cost     3,707      
Investments at fair value     $ 3,707      
Term Loan, Prime Index, Eleven [Member] | Nexii Building Solutions, Inc [Member] | Other Sustainability Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 15.50%   15.50%      
Margin 7.00%   7.00%      
Floor 10.25%   10.25%      
Ceiling 0.00%   0.00%      
ETP 0.00%   0.00%      
Maturity Date Mar. 31, 2024   Mar. 31, 2024      
Principal Amount $ 842   $ 802      
Investments at cost 767   791      
Investments at fair value $ 204   $ 431      
Term Loan, Prime Index, Eleven [Member] | Divergent Technologies, Inc. [Member] | Consumer-related Technologies [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate     11.25%      
Margin     6.00%      
Floor     9.50%      
Ceiling     11.25%      
ETP     3.00%      
Maturity Date     Jul. 01, 2028      
Principal Amount     $ 3,750      
Investments at cost     3,707      
Investments at fair value     $ 3,707      
Term Loan, Fixed Index One [Member] | Nexii Building Solutions, Inc [Member] | Other Sustainability Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 15.50%          
Margin 0.00%          
Floor 0.00%          
Ceiling 0.00%          
ETP 0.00%          
Maturity Date Aug. 30, 2024          
Principal Amount $ 422          
Investments at cost 384          
Investments at fair value $ 102          
Term Loan, Fixed Index One [Member] | Aerobiotix, LLC [Member] | Medical Device Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 9.00%   9.00%      
Margin 0.00%   0.00%      
Floor 0.00%   0.00%      
Ceiling 0.00%   0.00%      
ETP 18.00%   18.00%      
Maturity Date Apr. 01, 2028   Apr. 01, 2028      
Principal Amount $ 2,500   $ 2,500      
Investments at cost 2,474   2,468      
Investments at fair value $ 2,354   $ 2,342      
Term Loan, Fixed Index Two [Member] | Nexii Building Solutions, Inc [Member] | Other Sustainability Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 15.50%          
Margin 0.00%          
Floor 0.00%          
Ceiling 0.00%          
ETP 0.00%          
Maturity Date Aug. 30, 2024          
Principal Amount $ 557          
Investments at cost 485          
Investments at fair value $ 129          
Term Loan, Fixed Index Two [Member] | Aerobiotix, LLC [Member] | Medical Device Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 12.00%   9.00%      
Margin 3.50%   0.00%      
Floor 11.50%   0.00%      
Ceiling 0.00%   0.00%      
ETP 5.00%   18.00%      
Maturity Date Sep. 01, 2027   Apr. 01, 2028      
Principal Amount $ 2,500   $ 2,500      
Investments at cost 2,460   2,468      
Investments at fair value $ 2,460   $ 2,342      
Term Loan, Fixed Index Three [Member] | Nexii Building Solutions, Inc [Member] | Other Sustainability Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 15.50%          
Margin 0.00%          
Floor 0.00%          
Ceiling 0.00%          
ETP 0.00%          
Maturity Date Aug. 30, 2024          
Principal Amount $ 414          
Investments at cost 392          
Investments at fair value $ 104          
Term Loan, Fixed Index Three [Member] | Aerobiotix, LLC [Member] | Medical Device Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 12.00%   9.00%      
Margin 3.50%   0.00%      
Floor 11.50%   0.00%      
Ceiling 0.00%   0.00%      
ETP 5.00%   18.00%      
Maturity Date Sep. 01, 2027   Jun. 30, 2024      
Principal Amount $ 2,500   $ 200      
Investments at cost 2,460   200      
Investments at fair value $ 2,460   $ 190      
Term Loan, Prime Index, Twelve [Member] | Nexii Building Solutions, Inc [Member] | Other Sustainability Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 15.50%   15.50%      
Margin 7.00%   7.00%      
Floor 10.25%   10.25%      
Ceiling 0.00%   0.00%      
ETP 0.00%   0.00%      
Maturity Date Mar. 31, 2024   Mar. 31, 2024      
Principal Amount $ 1,145   $ 1,091      
Investments at cost 1,050   1,083      
Investments at fair value $ 279   $ 590      
Term Loan, Fixed Index Four [Member] | Nexii Building Solutions, Inc [Member] | Other Sustainability Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 15.50%          
Margin 0.00%          
Floor 0.00%          
Ceiling 0.00%          
ETP 0.00%          
Maturity Date Aug. 30, 2024          
Principal Amount $ 491          
Investments at cost 471          
Investments at fair value $ 125          
Term Loan, LIBOR Index, Two [Member] | Soli Organic, Inc [Member] | Other Sustainability Sector [Member] | Investment, Unaffiliated Issuer [Member]            
Cash Rate 15.25%          
Margin 6.75%          
Floor 10.00%          
Ceiling 0.00%          
ETP 2.75%          
Maturity Date Apr. 01, 2026          
Principal Amount $ 2,500          
Investments at cost 2,461          
Investments at fair value $ 2,461