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Stock-Based Compensation (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Remaining requisite service period			21 months
Unearned compensation	$ 871		$ 871
Time-Vested Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unearned compensation related to options	1,135		$ 1,135
Remaining service period			28 months
Stock Appreciation Rights (SARs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award Vesting Period			3 years		3 years
Award contractual term			10 years		10 years
Allocated share based compensation expense (income)	(365)	$ 192	$ 2,315	$ 261
Estimated fair value	7,261		$ 7,261
Granted (shares)			1,735,500
Stock appreciation award vesting rights			Vesting of the 2021 cash settled stock appreciation rights is contingent upon the achievement of a thirty-day trailing average fair market value of a share of the Company’s common stock of 133.3% ($3.17)
Exercise price			$ 2.38
Stock awards, Grants in Period, Weighted Average Grant Date Fair Value			$ 1.74
Including Liability Based Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated share based compensation expense (income)	$ (133)	$ 485	$ 2,829	$ 578
Certain Employees [Member] | Stock Appreciation Rights (SARs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted					1,139,464

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