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STATEMENTS OF OPERATIONS (USD $)
 12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Sales, net $ 32,102,296 $ 36,219,562 $ 38,981,837
Cost of Sales      
Costs of manufactured product 18,556,257 20,757,488 22,659,437
Royalty expense to shareholders 2,643,209 2,940,948 2,806,223
Total cost of sales 21,199,466 23,698,436 25,465,660
Gross profit 10,902,830 12,521,126 13,516,177
Operating expenses:      
Sales and marketing 3,439,535 3,674,168 4,372,163
Research and development 815,018 885,445 1,030,622
General and administrative 10,738,110 14,260,151 18,814,392
Impairment of assets   365,295 2,594,602
Total operating expenses 14,992,663 19,185,059 26,811,779
Loss from operations (4,089,833) (6,663,933) (13,295,602)
Interest and other income 62,596 32,324 57,604
Interest expense, net (240,484) (302,843) (21,892)
Litigation settlements, net 5,700,000 9,159,089  
Income (loss) before income taxes 1,432,279 2,224,637 (13,259,890)
Provision (benefit) for income taxes 13,797 (176,057) (3,837,590)
Net income (loss) 1,418,482 2,400,694 (9,422,300)
Preferred Stock dividend requirements (964,047) (1,370,620) (1,370,868)
Earnings (loss) applicable to common shareholders $ 454,435 $ 1,030,074 $ (10,793,168)
Basic earnings (loss) per share (in dollars per share) $ 0.02 $ 0.04 $ (0.45)
Diluted earnings (loss) per share (in dollars per share) $ 0.02 $ 0.04 $ (0.45)
Weighted average common shares outstanding:      
Basic (in shares) 24,171,238 23,872,783 23,806,533
Diluted (in shares) 26,354,786 26,248,874 23,806,533