Annual report pursuant to Section 13 and 15(d)

Income Taxes - Reconciliation of Net assets Resulting from Operations to Taxable Income (Details)

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Income Taxes - Reconciliation of Net assets Resulting from Operations to Taxable Income (Details) - USD ($)
3 Months Ended 12 Months Ended
Dec. 31, 2023
Sep. 30, 2023
Jun. 30, 2023
Mar. 31, 2023
Dec. 31, 2022
Sep. 30, 2022
Jun. 30, 2022
Mar. 31, 2022
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Income Tax Disclosure [Abstract]                      
Net increase (decrease) in net assets resulting from operations $ 1,088,979 $ 595,504 $ 2,671,890 $ 2,170,277 $ 320,175 $ 1,104,902 $ (1,896,389) $ (410,537) $ 6,526,650 $ (881,849) $ 15,797,428
Net change in unrealized appreciation/depreciation on investments                 (2,867,520) 6,017,752 $ (12,581,982)
Net change in deferred tax asset/liability                 (77,734) 44,862  
GAAP versus tax basis consolidation of subsidiaries                 (1,332,687) (863,702)  
Other permanent book income and tax income differences                 1,348,624 170,680  
Temporary book income and tax income differences                 (82,198) (803,001)  
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest, Total                 $ 3,515,135 $ 3,684,742