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Statements of Income - USD ($)
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Income Statement [Abstract]    
Revenues $ 18,400,182 $ 17,020,754
Cost of revenues 9,465,443 9,607,829
Gross profit 8,934,739 7,412,925
Operating expenses:    
Research and development 2,323,005 2,332,918
Sales and marketing 2,497,093 2,199,009
General and administrative 1,985,804 1,950,191
Total operating expenses 6,805,902 6,482,118
Operating income 2,128,837 930,807
Interest expense and other, net $ (100,455) (207,299)
Loss on extinguishment of debt 61,500
Net income before income taxes $ 1,849,612 464,057
Income tax expense (31,940) (31,940)
Net income $ 1,817,672 $ 432,117
Net income per share:    
Basic $ 0.33 $ 0.09
Diluted $ 0.30 $ 0.08
Weighted average shares outstanding:    
Basic 5,554,541 5,005,579
Diluted 5,975,052 5,250,914