Stock Option Plans - Schedule of Non-vested Shares Granted Under Stock Option Plan (Details) - shares	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Share-based Payment Arrangement [Abstract]
Non-vested, Options Outstanding, Beginning balance	10,138	16,700
Non-vested, Options Granted
Non-vested, Options Vested	(4,169)	(6,271)
Non-vested, Options Canceled		(291)
Non-vested, Options Outstanding, Ending balance	5,969	10,138