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Statements of Operations - USD ($)
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Income Statement [Abstract]      
Product sales $ 10,228,689 $ 7,596,874 $ 6,007,176
Cost of goods sold 3,977,787 3,147,837 2,946,570
Gross margin 6,250,902 4,449,037 3,060,606
Sales and marketing expenses 1,606,898 1,317,122 986,766
Administrative expenses 1,286,373 1,159,234 939,192
Product development expenses 1,235,309 2,179,079 1,154,200
Operating expenses 4,128,580 4,655,435 3,080,158
NET OPERATING INCOME (LOSS) 2,122,322 (206,398) (19,552)
Other expenses (revenues), net 58,774 49,053 (224,812)
INCOME (LOSS) BEFORE INCOME TAXES 2,063,548 (255,451) 205,260
Income tax expense (benefit) 850,309 (88,292) 87,865
NET INCOME (LOSS) $ 1,213,239 $ (167,159) $ 117,395
Weighted average common shares outstanding:      
Basic 3,042,376 3,027,001 3,019,407
Diluted 3,165,735 3,027,001 3,085,048
NET INCOME (LOSS) PER SHARE:      
Basic $ 0.40 $ (0.06) $ 0.04
Diluted $ 0.38 $ (0.06) $ 0.04