Condensed Consolidated Statements of Operations - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Interest income:
Commercial mortgage loans held-for-investment	$ 9,465,332	$ 8,111,324	$ 25,163,428	$ 25,749,282
Cash and cash equivalents	5,724	5,674	22,802	41,461
Interest expense:
Collateralized loan obligations	(3,891,089)	(2,495,996)	(8,288,278)	(9,649,523)
Secured term loan	(846,988)	(789,018)	(2,393,216)	(2,349,900)
Net interest income	4,732,979	4,831,984	14,504,736	13,791,320
Other income (loss):
Unrealized (loss) on mortgage servicing rights	(59,776)	(350,127)	(300,666)	(1,603,052)
Loss on extinguishment of debt	0	0	(1,663,926)	0
Servicing income, net	106,392	187,989	326,314	586,516
Other income	0	0	0	2
Total other income (loss)	46,616	(162,138)	(1,638,278)	(1,016,534)
Expenses:
Management and incentive fees	807,967	675,107	2,254,431	1,850,139
General and administrative expenses	935,817	786,651	2,136,144	2,531,385
Operating expenses reimbursable to Manager	511,117	441,349	1,320,170	1,249,123
Other operating expenses	91,378	309,125	174,185	1,444,049
Compensation expense	50,991	49,199	149,617	156,093
Total expenses	2,397,270	2,261,431	6,034,547	7,230,789
Net income before provision for income taxes	2,382,325	2,408,415	6,831,911	5,543,997
Benefit from income taxes	(7,857)	142,595	31,442	437,387
Net income	2,374,468	2,551,010	6,863,353	5,981,384
Dividends accrued to preferred stockholders	(1,198,167)	(3,792)	(1,927,542)	(11,292)
Net income attributable to common stockholders	1,176,301	2,547,218	4,935,811	5,970,092
Net income attributable to common stockholders, diluted	1,176,301	2,547,218	4,935,811	5,970,092
Earnings per share:
Net income attributable to common stockholders (basic and diluted)	$ 1,176,301	$ 2,547,218	$ 4,935,811	$ 5,970,092
Weighted average number of shares of common stock outstanding (in shares)	24,947,883	24,943,383	24,944,790	24,931,254
Basic income per share (in dollars per share)	$ 0.05	$ 0.10	$ 0.20	$ 0.24
Diluted income per share (in dollars per share)	0.05	0.10	0.20	0.24
Dividends declared per share of common stock (in dollars per share)	$ 0.09	$ 0.08	$ 0.27	$ 0.24