Stockholders' Equity - Summary of Warrant Activity (Details) - $ / shares	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Number of Shares, Exercisable at end of year	2,882,055
Common Stock Financing Warrant [Member]
Number of Shares, outstanding, at beginning of year	2,882,055	3,949,018
Number of Shares, Exercised		(1,066,963)
Number of Shares, outstanding at end of year	2,882,055	2,882,055
Number of Shares, Exercisable at end of year	2,882,055
Weighted Average Exercise Price, outstanding, at beginning of year	$ 0.80	$ 0.64
Weighted Average Exercise Price, Exercised
Weighted Average Exercise Price, outstanding, at end of year	0.60	$ 0.80
Weighted Average Exercise Price, Exercisable at end of year	$ 0.60
Weighted Average Remaining Contractual Life, Outstanding at beginning of year	3 years 11 months 12 days	4 years 9 months 22 days
Weighted Average Remaining Contractual Life, Outstanding at end of year	2 years 11 months 8 days	3 years 11 months 12 days
Weighted Average Remaining Contractual Life, Exercisable at end of year	2 years 11 months 8 days