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CONDENSED BALANCE SHEETS - USD ($)
Mar. 31, 2022
Dec. 31, 2021
Current assets:    
Cash and cash equivalents $ 43,110,346 $ 29,162,913
Accounts receivable, net 19,527,398 34,859,505
Receivable from Technology Investment Agreement (TIA) 5,542,048 5,924,136
Investments in debt and equity securities, at fair value 18,703,523 13,268,986
Inventories 18,857,009 20,589,919
Other current assets 759,597 701,969
Total current assets 106,499,921 104,507,428
Property, plant, and equipment, net 92,197,851 87,925,651
Deferred tax asset 8,794,315 13,865,834
Other assets 5,674 5,675
Total assets 207,497,761 206,304,588
Current liabilities:    
Accounts payable 13,291,544 20,404,573
Current portion of long-term debt 292,743 289,114
Accrued compensation 855,743 1,056,656
Dividends payable 1,417,937 1,438,371
Accrued royalties to shareholder 2,568,191 3,450,684
Other accrued liabilities 4,330,151 3,725,527
Income taxes payable 5,674,204 4,959,878
Total current liabilities 28,430,513 35,324,803
Other long-term liabilities 72,005,475 69,996,330
Long-term debt, net of current maturities 1,739,314 1,814,194
Total liabilities 102,175,302 107,135,327
Commitments and contingencies - see Note 8
Preferred stock, $1 par value:    
Common Stock, no par value 0 0
Additional paid-in capital 64,167,466 63,024,888
Retained earnings 48,740,773 41,182,429
Common stock in treasury - at cost (7,818,225) (5,270,501)
Total stockholders' equity 105,322,459 99,169,261
Total liabilities and stockholders' equity 207,497,761 206,304,588
Series II, Class B    
Preferred stock, $1 par value:    
Preferred stock 156,200 156,200
Series III, Class B    
Preferred stock, $1 par value:    
Preferred stock $ 76,245 $ 76,245