Summary of Significant Accounting Policies - Computation of Basic and Diluted Earnings Per Share (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Accounting Policies [Abstract]
Net income (loss)	$ (632,205)	$ (177,299)	$ 803,025	$ 999,669
Cumulative dividend on convertible preferred stock	(357,518)	(369,661)	(711,107)	(732,849)
Net income attributable to convertible preferred stockholders			(42,936)	(167,539)
Net income (loss) attributable to common stockholders	$ (989,723)	$ (546,960)	$ 48,982	$ 99,281
Shares used for basic EPS-weighted average shares	58,926,545	22,581,330	45,019,358	22,450,392
Restricted stock units			267,936	8,087
Warrants			441,438
Weighted average number of common shares and equivalents:	58,926,545	22,581,330	45,728,732	22,458,479
Basic EPS	$ (0.02)	$ (0.02)	$ 0.00	$ 0.00
Diluted EPS	$ (0.02)	$ (0.02)	$ 0.00	$ 0.00