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Net Loss Per Share - Calculation of Weighted Average Number of Shares Outstanding and Loss Per Share Outstanding (Details) - USD ($)	3 Months Ended				6 Months Ended		12 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Earnings Per Share [Abstract]
Numerator for basic and diluted income per share - Net loss	$ (387,730)	$ (3,205,174)	$ (2,962,890)	$ (2,588,232)	$ (3,592,904)	$ (5,551,122)	$ 15,500,000
Denominator for basic loss per share - weighted average shares outstanding	11,305,248		7,129,260		11,124,222	7,153,219
Dilutive effect of shares issuable under stock options and warrants outstanding
Denominator for diluted loss per share - adjusted weighted average shares outstanding	11,305,248		7,129,260		11,124,222	7,153,219
Net loss per share: Basic	$ (0.03)		$ (0.42)		$ (0.32)	$ (0.78)
Net loss per share: Diluted	$ (0.03)		$ (0.42)		$ (0.32)	$ (0.78)

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The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of call options and warrants using the treasury stock method.

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