CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Net cash provided by operating activities - continuing operations	$ 16,926,429	$ 5,285,457
Net cash used in operating activities - discontinued operations	(1,123,193)	(820,785)
Net cash provided by operating activities	15,803,236	4,464,672
Cash flows from investing activities
Purchase of certificate of deposit	(2,518,493)	(2,500,000)
Maturity of certificate of deposit	5,018,493
Additions to property, plant and equipment and construction in progress	(2,947,937)	(973,270)
Proceeds from asset dispositions	31,181	45,560
Net cash used in investing activities - continuing operations	(416,756)	(3,427,710)
Cash flows from financing activities
Dividends paid to common shareholders	(3,841,842)	(3,859,412)
Dividends paid to preferred shareholders	(8,154)	(8,387)
Dividends paid to non-controlling interests	(1,102,475)	(649,880)
Repurchase of redeemable preferred stock		(14,863)
Payments on note payable	(51,564)	(35,840)
Proceeds received from exercise of stock options	26,739	17,059
Net cash used in financing activities	(4,977,296)	(4,551,323)
Net increase (decrease) in cash and cash equivalents	10,409,184	(3,514,361)
Cash and cash equivalents at beginning of period	40,358,059	43,794,150
Cash and cash equivalents at beginning of period - discontinued operations	750,048	154,130
Less: cash and cash equivalents at end of period - discontinued operations	(432,002)	(36,326)
Cash and cash equivalents at end of period	51,085,289	40,397,593
Non-cash transactions:
Conversion (on a one-to-one basis) of 0 and 1,111, respectively, shares of redeemable preferred stock to common stock	3,951	5,663
Dividends declared but not paid	1,302,754	1,295,377
Transfers from (to) inventory to (from) property, plant and equipment and construction in progress	246,238	148,138
Transfers from construction in progress to property, plant and equipment	413,416	166,335
Right-of-use assets obtained in exchange for new operating lease liabilities		1,852,608
Purchase of equipment through issuance of long-term debt	68,422	58,220
Redeemable preferred stock [Member]
Non-cash transactions:
Stock Issued	133,197	102,203
Common stock [Member]
Non-cash transactions:
Stock Issued	$ 521,016	$ 745,468