Net Income (Loss) Per Share - Summary of Computation of Net Income or Loss Per Share (Details) - USD ($)	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Numerator:
Net income	$ 385,090	$ 139,153
Accretion of dividends on preferred convertible stock		(604,069)
Net income (loss) attributable to common stockholders	385,090	(464,916)
Adjustment for change in fair value of warrant liability		(78,834)
Net income (loss) attributable to common stockholders - diluted	$ 385,090	$ (543,750)
Weighted average shares used in calculating income (loss) per share:
Basic	9,359,562	665,842
Diluted	10,201,606	665,842
Net income (loss) per share:
Basic	$ 0.04	$ (0.70)
Diluted	$ 0.04	$ (0.82)