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Condensed Statements of Operations (Unaudited) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Income Statement [Abstract]        
Revenue $ 632,369 $ 306,683 $ 945,548 $ 522,914
Cost of revenue 200,446 98,641 308,526 177,210
Gross margin 431,923 208,042 637,022 345,704
Operating expenses:        
Research and development 486,982 708,622 859,341 1,065,507
Selling, general and administrative 2,627,005 1,432,862 4,862,642 2,577,328
Total operating expenses 3,113,987 2,141,484 5,721,983 3,642,835
Loss from operations (2,682,064) (1,933,442) (5,084,961) (3,297,131)
Other expense (income)        
Change in fair value of derivative liabilities (2,661) 130,162 (17,968) 155,008
Debt discount on convertible notes   5,172,000   5,172,000
Interest income and other expense, net (49,842) 146,250 (92,030) 314,115
Total other expense (income) (52,503) 5,448,412 (109,998) 5,641,123
Net loss (2,629,561) (7,381,854) (4,974,963) (8,938,254)
Deemed dividend – accreted preferred stock   (246,827)   (274,011)
Cumulative dividend to Series B-1 preferred stockholders   (125,903)   (287,779)
Net loss available to common stockholders $ (2,629,561) $ (7,754,584) $ (4,974,963) $ (9,500,044)
Weighted average number of common shares outstanding:        
Basic and diluted 12,407,758 2,312,679 12,155,600 1,722,168
Net loss per share available to common stockholders:        
Basic and diluted $ (0.21) $ (3.35) $ (0.41) $ (5.52)