Income Taxes - Narratives - Taxable REIT Subsidiary (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Investments
Income tax expense	$ 109,129	$ 114,635	$ 605,787	$ 114,635
Change in deferred tax assets	(4,500)	64,400	100,000	64,400
Terra BDC | Taxable REIT Subsidiary
Investments
Income (Loss) Attributable to Parent, before Tax	$ 500,000	$ 500,000	$ 2,100,000	$ 500,000
Effective Income Tax Rate Reconciliation, Percent	21.40%	21.00%	28.20%	21.00%
Income tax expense	$ 100,000	$ 100,000	$ 600,000	$ 100,000
Deferred Income Tax Expense (Benefit)	$ (3,000)	$ 13,500	$ 21,600	$ 13,500