Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock [Member]	Treasury Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Repurchased Stock [Member]	Preferred Stock [Member] Mezzanine Equity Series C Convertible Redeemable Preferred Stock [Member]
Beginning Balance at Dec. 31, 2020	$ 116,525	$ 555		$ 288,221	$ (171,770)	$ (481)	$ 13,200
Beginning balance, Shares at Dec. 31, 2020		54,863,000	618,000				4,000,000
Net income	82,025				82,025
Dividend	(594)			(594)
Treasury stock purchases, Value	(1,188)		$ 723			(1,188)
Treasury stock purchases, Shares		(723)
Ending Balance at Sep. 30, 2021	196,768	$ 555		287,627	(89,745)	(1,669)	$ 13,200
Ending balance, shares at Sep. 30, 2021		54,140,000	1,341,000				4,000,000
Beginning Balance at Jun. 30, 2021	160,987	$ 555		287,825	(126,024)	(1,369)	$ 13,200
Beginning balance, Shares at Jun. 30, 2021		54,270,000	1,211,000				4,000,000
Net income	36,279				36,279
Dividend	(198)			(198)
Treasury stock purchases, Value	(300)		$ 130			(300)
Treasury stock purchases, Shares		(130)
Ending Balance at Sep. 30, 2021	196,768	$ 555		287,627	(89,745)	(1,669)	$ 13,200
Ending balance, shares at Sep. 30, 2021		54,140,000	1,341,000				4,000,000
Beginning Balance at Dec. 31, 2021	205,560	$ 555		287,429	(79,144)	(3,280)	$ 13,200
Beginning balance, Shares at Dec. 31, 2021		53,316,000	2,165,000				4,000,000
Net income	32,366				32,366
Dividend	(594)			(594)
Cancellation of stock option	(969)			(969)
Treasury stock purchases, Value	(10,733)		$ 7,664			(10,733)
Treasury stock purchases, Shares		(7,664)
Ending Balance at Sep. 30, 2022	225,630	$ 555		285,866	(46,778)	(14,013)	$ 13,200
Ending balance, shares at Sep. 30, 2022		45,652,000	9,829,000				4,000,000
Beginning Balance at Jun. 30, 2022	218,605	$ 555		286,064	(54,800)	(13,214)	$ 13,200
Beginning balance, Shares at Jun. 30, 2022		46,016,000	9,465,000				4,000,000
Net income	8,022				8,022
Dividend	(198)			(198)
Treasury stock purchases, Value	(799)		$ 364			(799)
Treasury stock purchases, Shares		(364)
Ending Balance at Sep. 30, 2022	$ 225,630	$ 555		$ 285,866	$ (46,778)	$ (14,013)	$ 13,200
Ending balance, shares at Sep. 30, 2022		45,652,000	9,829,000				4,000,000