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BALANCE SHEETS (USD $)
Dec. 31, 2011
Dec. 31, 2010
Current assets:    
Cash and cash equivalents $ 25,673,263 $ 23,266,039
Accounts receivable, net of allowance for doubtful accounts of $2,078,944 and $780,900, respectively 3,576,411 7,582,062
Inventories, net 6,237,419 8,682,191
Income taxes receivable 39,485 12,031
Other current assets 218,529 681,244
Total current assets 35,745,107 40,223,567
Property, plant, and equipment, net 12,653,856 12,560,592
Intangible and other assets, net 362,976 406,910
Total assets 48,761,939 53,191,069
Current liabilities:    
Accounts payable 3,500,301 3,847,966
Current portion of long-term debt 620,472 519,611
Accrued compensation 628,794 603,484
Accrued royalties to shareholders 122,239 949,619
Other accrued liabilities 1,065,943 3,910,428
Income taxes payable 29,471 155,000
Total current liabilities 5,967,220 9,986,108
Long-term debt, net of current maturities 4,143,267 4,304,460
Total liabilities 10,110,487 14,290,568
Commitments and contingencies - See Note 8      
Preferred Stock $1 par value:    
Common Stock, no par value; authorized: 100,000,000 shares; issued and outstanding: 25,318,700 and 23,974,114 shares, respectively      
Additional paid-in capital 57,284,670 57,674,737
Retained deficit (19,634,770) (21,053,252)
Total stockholders' equity 38,651,452 38,900,501
Total liabilities and stockholders' equity 48,761,939 53,191,069
Series I, Class B
    
Preferred Stock $1 par value:    
Preferred Stock 103,500 144,000
Series II, Class B
    
Preferred Stock $1 par value:    
Preferred Stock 178,700 219,700
Series III, Class B
    
Preferred Stock $1 par value:    
Preferred Stock 130,245 130,245
Series IV, Class B
    
Preferred Stock $1 par value:    
Preferred Stock 542,500 552,500
Series V, Class B
    
Preferred Stock $1 par value:    
Preferred Stock $ 46,607 $ 1,232,571