Stockholders' Equity - Schedule of 2003 Stock Option and Appreciation Rights Plan (Details) - shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Options outstanding, beginning of year	3,516,225	3,611,850
Options expired	0	(20,000)
Options forfeited	(150,000)	(167,025)
Options outstanding, end of year	2,193,288	3,516,225
2003 Stock Option and Appreciation Rights Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Options outstanding, beginning of year	0	20,000
Options expired		(20,000)
Options outstanding, end of year	0	0