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Condensed Consolidated Statements of Operations (Unaudited) - USD ($)
 3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Revenue:        
Total revenue $ 2,923,148 $ 2,878,059 $ 8,020,927 $ 8,913,122
Cost of revenue:        
Total cost of revenue 1,734,886 1,700,770 4,700,113 5,007,972
Gross profit 1,188,262 1,177,289 3,320,814 3,905,150
Selling, general and administrative expenses:        
Research and development expense 517,010 323,981 1,562,086 1,097,861
Selling, advertising and promotional expense 877,218 711,506 2,871,154 2,097,919
Stock-based compensation expense 405,579 669,480 1,715,972 1,757,227
General and administrative expense 1,668,902 1,382,038 5,970,565 4,272,484
Patent litigation settlement (6,000,000)
Total selling, general and administrative expenses 3,468,709 3,087,005 6,119,777 9,225,491
Operating loss (2,280,447) (1,909,716) (2,798,963) (5,320,341)
Other income (expense)        
Interest income 6,667 2,206 30,279 4,507
Interest expense (37,037) (1,083,317) (37,037) (1,366,520)
Change in warrant derivative liabilities (9,799) (319,105)
Secured convertible notes issuance expense (89,148) (89,148) (220,312)
Loss on the extinguishment of secured convertible debentures (100,000) (600,000)
Change in fair value of proceeds investment agreement (177,000) (98,487) (3,275,000) (98,487)
Change in fair value of secured convertible notes (408,860) (408,860)
Change in fair value of secured convertible debentures (1,466,467) (2,296,444)
Loss before income tax benefit (2,985,825) (4,665,580) (6,578,729) (10,216,702)
Income tax benefit
Net loss $ (2,985,825) $ (4,665,580) $ (6,578,729) $ (10,216,702)
Net loss per share information:        
Basic $ (0.26) $ (0.60) $ (0.58) $ (1.40)
Diluted $ (0.26) $ (0.60) $ (0.58) $ (1.40)
Weighted average shares outstanding:        
Basic 11,637,289 7,725,877 11,296,999 7,295,098
Diluted 11,637,289 7,725,877 11,296,999 7,295,098
Product [Member]        
Revenue:        
Total revenue $ 2,173,257 $ 2,334,863 $ 6,039,445 $ 7,319,676
Cost of revenue:        
Total cost of revenue 1,601,913 1,592,072 4,333,812 4,672,432
Service and Other [Member ]        
Revenue:        
Total revenue 749,891 543,196 1,981,482 1,593,446
Cost of revenue:        
Total cost of revenue $ 132,973 $ 108,698 $ 366,301 $ 335,540