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CONDENSED STATEMENTS OF OPERATIONS - USD ($)
 3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
CONDENSED STATEMENTS OF OPERATIONS        
Sales, net $ 7,646,117 $ 7,575,053 $ 14,569,797 $ 13,497,035
Cost of Sales        
Cost of manufactured product 4,801,495 4,274,010 8,812,408 7,500,607
Royalty expense to shareholders 635,554 682,402 1,223,398 1,187,777
Total cost of sales 5,437,049 4,956,412 10,035,806 8,688,384
Gross profit 2,209,068 2,618,641 4,533,991 4,808,651
Operating expenses:        
Sales and marketing 1,223,842 986,172 2,251,553 1,895,744
Research and development 157,395 146,854 305,844 271,773
General and administrative 2,133,040 2,091,151 4,433,907 4,140,839
Total operating expenses 3,514,277 3,224,177 6,991,304 6,308,356
Loss from operations (1,305,209) (605,536) (2,457,313) (1,499,705)
Interest and other income 14,173 6,032 24,678 11,213
Interest expense (58,028) (56,710) (106,091) (106,333)
Net loss before income taxes (1,349,064) (656,214) (2,538,726) (1,594,825)
Provision for income taxes 282 480 565 960
Net loss (1,349,346) (656,694) (2,539,291) (1,595,785)
Preferred stock dividend requirements (176,249) (176,249) (352,498) (352,498)
Loss applicable to common shareholders $ (1,525,595) $ (832,943) $ (2,891,789) $ (1,948,283)
Basic loss per share (in dollars per share) $ (0.05) $ (0.03) $ (0.09) $ (0.07)
Diluted loss per share (in dollars per share) $ (0.05) $ (0.03) $ (0.09) $ (0.07)
Weighted average common shares outstanding:        
Basic (in shares) 31,666,454 29,483,207 31,499,787 29,054,041
Diluted (in shares) 31,666,454 29,483,207 31,499,787 29,054,041