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Statements of Operations - USD ($)
 3 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Income Statement [Abstract]        
Revenues $ 4,517,898 $ 4,921,596 $ 13,008,895 $ 13,108,007
Cost of revenues 2,279,922 2,777,735 6,848,312 7,440,521
Gross profit 2,237,976 2,143,861 6,160,583 5,667,486
Operating expenses:        
Research and development 576,284 611,851 1,701,619 1,751,908
Sales and marketing 609,666 545,654 1,837,240 1,548,434
General and administrative 450,783 466,745 1,520,335 1,499,495
Total operating expenses 1,636,733 1,624,250 5,059,194 4,799,837
Operating income 601,243 519,611 1,101,389 867,649
Interest expense and other, net $ (63,483) $ (80,506) $ (218,152) (329,684)
Loss on extinguishment of debt (61,500)
Net income before income taxes $ 537,760 $ 439,105 $ 883,237 476,465
Income tax expense (7,985) (7,985) (23,955) (23,955)
Net income $ 529,775 $ 431,120 $ 859,282 $ 452,510
Net income per share:        
Basic $ 0.10 $ 0.09 $ 0.16 $ 0.09
Diluted $ 0.09 $ 0.08 $ 0.14 $ 0.09
Weighted average shares outstanding:        
Basic 5,560,197 4,934,591 5,539,766 4,916,066
Diluted 5,980,382 5,416,574 5,959,951 5,100,344