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CONDENSED STATEMENTS OF OPERATIONS (USD $)
3 Months Ended 9 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2013
Sep. 30, 2012
CONDENSED STATEMENTS OF OPERATIONS        
Sales, net $ 9,160,278 $ 9,444,157 $ 23,240,623 $ 25,602,046
Cost of sales        
Cost of manufactured product 5,094,432 5,318,351 13,534,753 14,114,956
Royalty expense to shareholders 748,044 772,142 1,872,553 1,962,780
Total cost of sales 5,842,476 6,090,493 15,407,306 16,077,736
Gross profit 3,317,802 3,353,664 7,833,317 9,524,310
Operating expenses:        
Sales and marketing 1,092,505 1,034,419 3,235,528 2,939,142
Research and development 267,991 244,015 648,224 601,008
General and administrative 2,782,623 2,286,614 8,527,295 7,372,663
Total operating expenses 4,143,119 3,565,048 12,411,047 10,912,813
Loss from operations (825,317) (211,384) (4,577,730) (1,388,503)
Interest and other income 6,551 11,286 27,149 34,199
Interest expense, net (59,533) (68,994) (172,236) (211,344)
Loss before income taxes (878,299) (269,092) (4,722,817) (1,565,648)
Provision for income taxes 62,085 3,869 65,836 26,372
Net loss (940,384) (272,961) (4,788,653) (1,592,020)
Preferred stock dividend requirements (228,999) (229,527) (687,066) (688,581)
Loss applicable to common shareholders $ (1,169,383) $ (502,488) $ (5,475,719) $ (2,280,601)
Basic loss per share (in dollars per share) $ (0.04) $ (0.02) $ (0.20) $ (0.09)
Diluted loss per share (in dollars per share) $ (0.04) $ (0.02) $ (0.20) $ (0.09)
Weighted average common shares outstanding - basic and diluted (in shares) 26,719,608 26,972,818 27,000,158 25,870,073