Stockholders' Equity - Common Stock (Details) - USD ($)	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
Equity [Abstract]
Stock newly-issued during the period (in shares)	71,667
Proceeds from stock option and warrant exercises	$ 685,101	$ 601,250

Number of share options (or share units) exercised during the current period.

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Period Type:	duration