Supplemental disclosure of cash flow information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Supplemental Disclosure Of Cash Flow Information [Line Items]
Interest paid in cash	$ 21,417	$ 14,797
Income taxes paid in cash	4,920,912	211,000
Non-cash transactions:
Dividends declared but not paid	1,502,506	1,305,367
Issuance of 368,383 and 0, respectively, shares of common stock for the purchase of non-controlling interests in PERC	5,359,973	0
Transfers from inventory to property, plant and equipment and construction in progress	317,853	346,024
Transfers from construction in progress to property, plant and equipment	7,093,158	297,723
Right-of-use assets obtained in exchange for new operating lease liabilities	745,078	0
Purchase of equipment through issuance of long-term debt	0	188,645
Redeemable preferred stock [Member]
Non-cash transactions:
Issuance of 13,309 and 9,295, respectively, shares of redeemable preferred stock for services rendered	323,275	133,197
Conversion (on a one-to-one basis) of 8,848 and 6,585, respectively, shares of redeemable preferred stock to common stock	5,309	3,951
Issuance of shares, respectively, shares of common stock for services rendered	$ 13,309	$ 9,295
Conversion (on a one-to-one basis) of 8,848 and 6,585, respectively, shares of redeemable preferred stock to common stock	8,848	6,585
Common stock [Member]
Non-cash transactions:
Issuance of 68,864 and 72,597, respectively, shares of common stock for services rendered	$ 1,015,177	$ 877,298
Issuance of shares, respectively, shares of common stock for services rendered	$ 68,864	$ 72,597