CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Net cash provided by operating activities - continuing operations	$ 9,245,264	$ 16,926,429
Net cash used in operating activities - discontinued operations	(849,639)	(1,123,193)
Net cash provided by operating activities	8,395,625	15,803,236
Cash flows from investing activities
Purchase of certificate of deposit		(2,518,493)
Maturity of certificate(s) of deposit		5,018,493
Additions to property, plant and equipment and construction in progress	(4,123,770)	(2,947,937)
Proceeds from asset dispositions	21,410	31,181
Purchase of non-controlling interest in PERC	(2,440,027)
Net cash used in investing activities	(6,542,387)	(416,756)
Cash flows from financing activities
Dividends paid to common shareholders	(3,977,676)	(3,841,842)
Dividends paid to preferred shareholders	(9,933)	(8,154)
Dividends paid to non-controlling interests		(1,102,475)
Buyback of redeemable preferred stock	(1,830)
Proceeds received from exercise of stock options	99,764	26,739
Principal repayments on long-term debt	(82,347)	(51,564)
Net cash used in financing activities	(3,972,022)	(4,977,296)
Net increase (decrease) in cash and cash equivalents	(2,118,784)	10,409,184
Cash and cash equivalents at beginning of period	50,711,751	40,358,059
Cash and cash equivalents at beginning of period - discontinued operations	442,252	750,048
Less: cash and cash equivalents at end of period - discontinued operations	(189,613)	(432,002)
Cash and cash equivalents at end of period	48,845,606	51,085,289
Non-cash transactions:
Dividends declared but not paid	1,500,218	1,302,754
Conversion (on a one-to-one basis) of 7,936 and 6,585, respectively, shares of redeemable preferred stock to common stock	4,762	3,951
Transfers from inventory to property, plant and equipment and construction in progress	224,952	246,238
Transfers from construction in progress to property, plant and equipment	525,673	413,416
Right-of-use assets obtained in exchange for new operating lease liabilities	249,145
Purchase of equipment through issuance of long-term debt		68,422
Transfers from prepaids to property, plant and equipment	255,379
Transfers from prepaids to inventory	238,032
Redeemable preferred stock [Member]
Non-cash transactions:
Issuance of shares of common stock for services rendered	287,922	133,197
Common stock [Member]
Non-cash transactions:
Issuance of shares of common stock for services rendered	621,811	$ 521,016
Issuance of 368,383 and 0, respectively, shares of common stock for the purchase of non-controlling interests in PERC	$ 5,359,973