CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Cash flows from operating activities
Net (loss) income	$ (378,568)	$ 324,668
Adjustments to reconcile net (loss) income to net cash provided by operating activities
Depreciation and amortization	1,018,681	704,376
Unrealized loss (gain) on marketable equity securities	218,169	(227,282)
Amortization of loan procurement costs	100,029	100,534
Stock-based compensation	64,479	105,890
Changes in operating assets and liabilities:
Accounts receivable	77,996	(38,340)
Prepaid expenses and other assets	(107,514)	(35,730)
Accounts payable and accrued expenses	40,494	170,034
Net cash provided by operating activities	1,033,766	1,104,150
Cash flows from investing activities
Construction	(1,043,538)	(244,674)
Improvements and equipment additions	(100,427)	(21,877)
Net cash used in investing activities	(1,143,965)	(266,551)
Cash flows from financing activities
Principal payments on note payable	(242,972)	(233,014)
Dividends paid	(1,212,669)	(1,000,475)
Net cash used in financing activities	(1,455,641)	(1,233,489)
Net decrease in cash and cash equivalents	(1,565,840)	(395,890)
Cash, cash equivalents, and restricted cash, beginning of period	4,253,565	1,712,266
Cash, cash equivalents, and restricted cash, end of period	2,687,725	1,316,376
Supplemental schedule of cash flow information
Interest paid	$ 518,070	$ 413,181