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Net Income (Loss) Per Share - Summary of Computation of Net Income or Loss Per Share (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Numerator:
Net income	$ (70,121)	$ 1,311,209	$ 314,970	$ 1,450,361
Accretion of dividends on preferred convertible stock		(610,781)		(1,214,850)
Net income (loss) attributable to common stockholders	(70,121)	700,428	314,970	235,511
Accretion of dividends on preferred stock		354,270
Adjustment for change in fair value of warrant liability		(381,455)		(460,289)
Net income (loss) attributable to common stockholders - diluted	$ (70,121)	$ 673,243	$ 314,970	$ (224,778)
Weighted average shares used in calculating income (loss) per share:
Basic	9,520,285	724,979	9,440,368	695,415
Diluted	9,520,285	4,479,505	10,120,998	695,415
Net income (loss) per share:
Basic	$ (0.01)	$ 0.97	$ 0.03	$ 0.34
Diluted	$ (0.01)	$ 0.15	$ 0.03	$ (0.32)

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