CONSOLIDATED STATEMENTS OF CASH FLOWS	3 Months Ended	6 Months Ended
	Jun. 30, 2021 USD ($)	Jun. 30, 2021 USD ($)	Jun. 30, 2020 USD ($)
Cash flows from operating activities
Net income (loss)		$ 1,272,546	$ (378,568)
Adjustments to reconcile net income (loss) to net cash provided by operating activities
Depreciation and amortization		812,175	1,018,681
Unrealized (gain) loss on marketable equity securities	$ (494,461)	(709,197)	218,169
Amortization of loan procurement costs		99,501	100,029
Stock-based compensation		86,182	64,479
Changes in operating assets and liabilities:
Accounts receivable		(41,537)	77,996
Prepaid expenses and other assets		51,110	(107,514)
Accounts payable and accrued expenses		323,994	40,494
Net cash provided by operating activities		1,894,774	1,033,766
Cash flows from investing activities
Improvements and equipment additions		(171,444)	(100,427)
Construction			(1,043,538)
Net cash used in investing activities		(171,444)	(1,143,965)
Cash flows from financing activities
Issuance of common stock, net of expenses		6,184,684
Principal payments on note payable		(253,355)	(242,972)
Dividends paid		(1,218,428)	(1,212,669)
Net cash provided by (used in) financing activities		4,712,901	(1,455,641)
Net increase (decrease) in cash, cash equivalents, and restricted cash		6,436,231	(1,565,840)
Cash, cash equivalents, and restricted cash, beginning of period	8,391,674	1,955,443	4,253,565
Cash, cash equivalents, and restricted cash, end of period	8,391,674	8,391,674
Supplemental cash flow and noncash information
Cash paid for interest		474,163	518,070
Supplemental disclosure of noncash activities:
Dividends payable	$ 1,103	$ 1,103	$ 1,954