Income Taxes - Reconciliation of net increase in net assets resulting from operations (Details) - USD ($)		3 Months Ended		9 Months Ended
		Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Investments
Net (decrease) increase in net assets resulting from operations		$ (2,737,184)	$ 755,256	$ (1,714,212)	$ 2,252,681
Net change in unrealized (depreciation) appreciation on investments		3,193,123	720,210	3,444,211	(390,245)
(Reversal of incentive fees) incentive fees on capital gains (1)	[1]	(68,486)	(90,614)	(102,160)	167,393
Income tax expense				605,787	0
Amortization of transaction-related fee				(475,851)	268,279
Interest Income, Securities, Operating, Taxable				1,715,647	2,289,700
Loans held for investment, net
Investments
Net change in unrealized (depreciation) appreciation on investments		3,193,123	720,210	3,444,211	(390,245)
Obligations Under Participation Agreements
Investments
Net change in unrealized (depreciation) appreciation on investments		$ (15,188)	$ 0	$ (42,128)	$ (8,408)

[1] For the three and nine months ended September 30, 2022, Terra Income Fund 6, Inc. (“Terra BDC”) reversed previously accrued incentive fees on capital gains of $68,486 and $102,160, respectively. Terra BDC also reversed previously accrued incentive fees on capital gains of $90,614 for the three months ended September 30, 2021. Incentive fees on capital gains were based on 20% of net realized and unrealized capital gains. No incentive fees on capital gains were actually payable by Terra BDC with respect to unrealized gains unless and until those gains were realized.