BALANCE SHEETS - USD ($)	Dec. 31, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 4,235,388	$ 12,667,550
Accounts receivable, net	7,786,697	10,671,721
Investments in debt and equity securities, at fair value	40,328,308	34,621,213
Inventories	19,189,753	17,581,368
Income taxes receivable	978,851	1,155,077
Other current assets	753,062	952,668
Total current assets	73,272,059	77,649,597
Property, plant, and equipment, net	87,348,518	93,478,521
Deferred tax asset		8,392,030
Other assets	103,625	152,064
Total assets	160,724,202	179,672,212
Current liabilities:
Accounts payable	4,290,588	4,779,035
Current portion of long-term debt	332,480	303,991
Accrued compensation	1,073,357	865,105
Dividends payable	1,417,437	1,417,437
Accrued royalties to shareholder	789,358	1,376,555
Other accrued liabilities	873,254	630,571
Income taxes payable	4,442	4,802
Total current liabilities	8,780,916	9,377,496
Other long-term liabilities	63,872,553	69,773,538
Long-term debt, net of current maturities	900,042	1,233,519
Total liabilities	73,553,511	80,384,553
Commitments and contingencies - see Note 10
Stockholders' equity:
Common Stock, no par value; authorized: 100,000,000 shares; 34,024,304 shares issued and 29,937,159 shares outstanding at December 31, 2024 and 2023
Additional paid-in capital	73,160,333	73,160,333
Retained earnings	26,668,591	38,785,559
Common stock in treasury - at cost (4,087,145 shares at December 31, 2024 and 2023)	(12,888,678)	(12,888,678)
Total stockholders' equity	87,170,691	99,287,659
Total liabilities and stockholders' equity	160,724,202	179,672,212
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	$ 74,245	$ 74,245