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Stock-Based Compensation - Summary of Stock Option and Restricted Stock Awards (Details) - USD ($)	6 Months Ended	12 Months Ended
	Jun. 30, 2020	Dec. 31, 2019
Number Outstanding, Options exercised
Stock Options [Member]
Number Outstanding, Outstanding, Beginning Balance	4,332,142
Number Outstanding, Granted	644,000
Number Outstanding, Options exercised	(140,864)
Number Outstanding, Vested and issued
Number Outstanding, Forfeited, cancelled or expired	(110,002)
Number Outstanding, Ending Balance	4,725,276	4,332,142
Number Outstanding, Exercisable	3,194,777
Weighted Average Exercise Price, Outstanding, Beginning Balance	$ 2.63
Weighted Average Exercise Price, Granted	3.52
Weighted Average Exercise Price, Options exercised	2.64
Weighted Average Exercise Price, Vested and issued
Weighted Average Exercise Price, Forfeited, cancelled or expired	2.21
Weighted Average Exercise Price, Outstanding, Ending Balance	2.76	$ 2.63
Weighted Average Exercise Price, Exercisable	$ 2.86
Aggregate Intrinsic Value, Outstanding, Ending Balance	$ 5,494,924
Aggregate Intrinsic Value, Exercisable	$ 3,733,421
Restricted Stock [Member]
Weighted Average Remaining Contractual Term (years), Outstanding, Ending Balance	8 years 3 months 19 days
Weighted Average Remaining Contractual Term (years), Exercisable	7 years 9 months 18 days
Number Outstanding, Non-vested stock awards outstanding, Beginning Balance	8,750
Number Outstanding, Non-vested stock awards outstanding, Granted	429,855
Number Outstanding, Non-vested stock awards outstanding, Options exercised
Number Outstanding, Non-vested stock awards outstanding, Vested and issued	(429,855)
Number Outstanding, Non-vested stock awards outstanding, Forfeited
Number Outstanding, Non-vested stock awards outstanding, Ending Balance	8,750	8,750
Weighted Average Grant Date Fair Value, Non-vested stock awards, Beginning Balance	$ 1.59
Weighted Average Grant Date Fair Value, Non-vested stock awards, Granted	1.16
Weighted Average Grant Date Fair Value, Non-vested stock awards, Options exercised
Weighted Average Grant Date Fair Value, Non-vested stock awards, Vested and issued	1.16
Weighted Average Grant Date Fair Value, Non-vested stock awards, Forfeited
Weighted Average Grant Date Fair Value, Non-vested stock awards, Ending Balance	$ 1.59	$ 1.59
Aggregate Intrinsic Value, Outstanding, Non-vested stock awards, Ending Balance	$ 7,875

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The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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