CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Cash flows from operating activities
Net (loss) income	$ (41,444)	$ 573,901
Adjustments to reconcile net (loss) income to net cash provided by operating activities
Depreciation and amortization	1,527,901	1,056,087
Unrealized gain on marketable equity securities	(27,402)	(355,102)
Amortization of loan procurement costs	149,946	150,708
Stock-based compensation	99,762	135,320
Changes in operating assets and liabilities:
Accounts receivable	95,006	(34,479)
Prepaid expenses and other assets	(275,825)	(193,262)
Accounts payable and accrued expenses	(310,392)	265,957
Net cash provided by operating activities	1,217,552	1,599,130
Cash flows from investing activities
Construction	(1,402,573)	(424,382)
Improvements and equipment additions	(194,787)	(53,710)
Net cash used in investing activities	(1,597,360)	(478,092)
Cash flows from financing activities
Principal payments on note payable	(366,378)	(351,362)
Line of credit borrowing	230,000	380,000
Dividends paid	(1,819,845)	(1,501,883)
Net cash used in financing activities	(1,956,223)	(1,473,245)
Net decrease in cash and cash equivalents	(2,336,031)	(352,207)
Cash, cash equivalents, and restricted cash, beginning of period	4,253,565	1,712,266
Cash, cash equivalents, and restricted cash, end of period	1,917,534	1,360,059
Supplemental schedule of cash flow information
Interest paid	$ 757,537	$ 618,344