CONDENSED BALANCE SHEETS - USD ($)	Jun. 30, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 4,142,889	$ 19,721,345
Accounts receivable, net	7,223,222	4,835,119
Receivable from Technology Investment Agreement (TIA)		2,025,413
Investments in debt and equity securities, at fair value	39,773,094	29,657,314
Inventories	20,914,779	20,684,168
Income taxes receivable	9,195,113	10,619,835
Prepaid estimated taxes	4,295	4,295
Other current assets	1,297,439	1,262,221
Total current assets	82,550,831	88,809,710
Property, plant, and equipment, net	96,824,184	100,152,768
Deferred tax asset	7,219,868	6,518,663
Other assets	170,695	184,524
Total assets	186,765,578	195,665,665
Current liabilities:
Accounts payable	3,581,422	6,404,925
Current portion of long-term debt	293,539	285,954
Accrued compensation	928,341	997,530
Dividends payable	1,417,937	1,417,937
Accrued royalties to shareholder	653,478	973,701
Other accrued liabilities	1,990,314	1,992,144
Income taxes payable	5,235	63,631
Total current liabilities	8,870,266	12,135,822
Other long-term liabilities	72,965,630	75,459,612
Long-term debt, net of current maturities	1,386,691	1,533,422
Total liabilities	83,222,587	89,128,856
Commitments and contingencies - see Note 8
Stockholders' equity:
Common Stock, no par value	0	0
Additional paid-in capital	73,164,501	73,164,501
Retained earnings	43,034,723	46,028,541
Common stock in treasury - at cost	(12,888,678)	(12,888,678)
Total stockholders' equity	103,542,991	106,536,809
Total liabilities and stockholders' equity	186,765,578	195,665,665
Series II, Class B
Stockholders' equity:
Preferred stock, $1 par value: Class B; authorized: 5,000,000 shares	156,200	156,200
Series III, Class B
Stockholders' equity:
Preferred stock, $1 par value: Class B; authorized: 5,000,000 shares	$ 76,245	$ 76,245