CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock [Member]	Treasury Stock-Common [Member]	Preferred Stock [Member]	Capital in Excess of Par Value [Member]	Retained Earnings (Accumulated Deficit) [Member]
Balance at Dec. 31, 2020	$ 149,643	$ 3,993	$ (13,213)	$ 3,000	$ 197,350	$ (41,487)
Balance, shares at Dec. 31, 2020		39,926	(2,075)
Net income (loss)	(13,279)					(13,279)
Dividend accrued on redeemable preferred stock	(9,511)					(9,511)
Accretion of redeemable preferred stock	(511)					(511)
Stock-based compensation	713				713
Restricted stock granted from treasury stock		$ 25	$ 5,310		(5,335)
Restricted stock granted from treasury stock, shares		250	835
Other	(18)		$ (18)
Other, Shares			(5)
Balance at Mar. 31, 2021	127,037	$ 4,018	$ (7,921)	$ 3,000	192,728	(64,788)
Balance, shares at Mar. 31, 2021		40,176	(1,245)
Balance at Dec. 31, 2021	460,490	$ 9,117	$ (10,533)		493,161	(31,255)
Balance, shares at Dec. 31, 2021		91,168	(1,375)
Net income (loss)	58,766					58,766
Stock-based compensation	803				803
Other	(1,871)		$ (1,871)
Other, Shares			(229)
Balance at Mar. 31, 2022	$ 518,188	$ 9,117	$ (12,404)		$ 493,964	$ 27,511
Balance, shares at Mar. 31, 2022		91,168	(1,604)