Summary of Significant Accounting Policies - Computation of Basic and Diluted Earnings Per Share (Details) - USD ($)	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Accounting Policies [Abstract]
Net income (loss)	$ (2,122,820)	$ 1,435,229
Cumulative dividend on convertible preferred stock	(353,510)	(353,589)
Net loss attributable to convertible preferred stock		610,280
Net income (loss) attributable to common stockholders	$ (2,476,330)	$ 471,360
Share used for basic EPS-weighted average shares	59,196,652	30,957,648
Restricted Stock Units		292,891
Warrants		1,872,059
Weighted average number of common shares and equivalents:	59,196,652	33,122,598
Basic EPS	$ (0.04)	$ 0.02
Diluted EPS	$ (0.04)	$ 0.01