CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Cash flows from operating activities
Net income	$ 2,057,723	$ 3,281,251
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation and amortization	1,619,239	1,631,609
Unrealized loss (gain) on marketable equity securities	1,117,029	(1,566,731)
Unrealized gain on interest rate cap premium	(113,744)	(9,404)
Amortization of loan procurement costs	139,895	169,868
Stock-based compensation	173,921	194,372
Gain on PPP loan forgiveness	(307,210)
Changes in operating assets and liabilities:
Accounts receivable	(47,658)	(14,120)
Prepaid expenses and other assets	108,861	(182,360)
Accounts payable and accrued expenses	48,999	138,267
Net cash provided by operating activities	4,797,055	3,642,752
Cash flows from investing activities
Improvements and equipment additions	(113,333)	(253,142)
Net cash used in investing activities	(113,333)	(253,142)
Cash flows from financing activities
Issuance of common stock, net of expenses	2,008,436	6,215,234
Proceeds received on PPP loan forgiveness	307,210
Line of credit repayment		(5,144,000)
Line of credit issuance costs		(231,926)
Principal payments on note payable	(533,952)	(512,067)
Dividends paid	(3,014,108)	(2,608,595)
Net cash used in financing activities	(1,232,414)	(2,281,354)
Net increase in cash, cash equivalents, and restricted cash	3,451,308	1,108,256
Cash, cash equivalents, and restricted cash, beginning of period	3,063,699	1,955,443
Cash, cash equivalents, and restricted cash, end of period	6,515,007	3,063,699
Supplemental cash flow and noncash information
Cash paid for interest	758,439	881,759
Supplemental disclosure of noncash activities:
Dividends payable	4,955	3,056
Establishment of operating lease right-of-use assets and lease liabilities
Operating lease right-of-use assets	(54,199)	(11,622)
Operating lease liabilities	$ 54,199	$ 11,622