CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Cash flows from operating activities
Net income	$ 687,407	$ 1,272,546
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation and amortization	809,383	812,175
Unrealized loss (gain) on marketable equity securities	830,373	(709,197)
Unrealized (gain) loss on interest rate cap premium	(42,157)	4
Amortization of loan procurement costs	70,089	99,501
Stock-based compensation	91,933	86,182
Gain on PPP loan forgiveness	(307,210)
Changes in operating assets and liabilities:
Accounts receivable	(23,387)	(41,537)
Prepaid expenses and other assets	226,487	51,106
Accounts payable and accrued expenses	65,294	323,994
Net cash provided by operating activities	2,408,212	1,894,774
Cash flows from investing activities
Improvements and equipment additions	(14,916)	(171,444)
Net cash used in investing activities	(14,916)	(171,444)
Cash flows from financing activities
Issuance of common stock, net of expenses	1,184,323	6,184,684
Proceeds received on PPP loan forgiveness	307,210
Principal payments on note payable	(264,183)	(253,355)
Dividends paid	(1,406,874)	(1,218,428)
Net cash (used in) provided by in financing activities	(179,524)	4,712,901
Net increase in cash, cash equivalents, and restricted cash	2,213,772	6,436,231
Cash, cash equivalents, and restricted cash, beginning of period	3,063,699	1,955,443
Cash, cash equivalents, and restricted cash, end of period	5,277,471	8,391,674
Supplemental cash flow and noncash information
Cash paid for interest	381,089	474,163
Supplemental disclosure of noncash activities:
Dividends payable	$ 1,952	$ 1,103