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CONDENSED STATEMENTS OF OPERATIONS - USD ($)
 3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
CONDENSED STATEMENTS OF OPERATIONS    
Sales, net $ 6,923,680 $ 5,921,982
Cost of Sales    
Cost of manufactured product 4,010,913 3,226,597
Royalty expense to shareholders 587,844 505,375
Total cost of sales 4,598,757 3,731,972
Gross profit 2,324,923 2,190,010
Operating expenses:    
Sales and marketing 1,027,711 909,572
Research and development 148,449 124,919
General and administrative 2,300,867 2,049,688
Total operating expenses 3,477,027 3,084,179
Loss from operations (1,152,104) (894,169)
Interest and other income 10,505 5,181
Interest expense (48,063) (49,623)
Loss before income taxes (1,189,662) (938,611)
Provision for income taxes 283 480
Net loss (1,189,945) (939,091)
Preferred stock dividend requirements (176,249) (176,249)
Loss applicable to common shareholders $ (1,366,194) $ (1,115,340)
Basic loss per share (in dollars per share) $ (0.04) $ (0.04)
Diluted loss per share (in dollars per share) $ (0.04) $ (0.04)
Weighted average common shares outstanding:    
Basic (in shares) 31,333,121 28,624,874
Diluted (in shares) 31,333,121 28,624,874