Condensed Consolidated Statements of Changes in Stockholders' Deficit (Unaudited) - USD ($) $ in Thousands	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Treasury Stock [Member]	AOCI Attributable to Parent [Member]	Total
Balance at Dec. 31, 2019	$ 9,723	$ 12,121	$ 447,022	$ 797,817	$ (1,243,509)	$ (63,134)	$ (49,683)
Stock-based compensation	0	0	223	0	0	0	223
Vesting of RSU's	0	0	(29,667)	0	29,667	0	0
Net Income (loss)	0	0	0	5,118	0	0	5,118
Other comprehensive income	0	0	0	0	0	51	51
Balance at Mar. 31, 2020	9,723	12,121	417,578	802,935	(1,213,842)	(63,083)	(44,291)
Balance at Dec. 31, 2019	9,723	12,121	447,022	797,817	(1,243,509)	(63,134)	(49,683)
Net Income (loss)							(2,738)
Other comprehensive income						2,894	2,894
Balance at Sep. 30, 2020	9,723	12,121	393,545	795,079	(1,189,465)	(60,240)	(48,960)
Balance at Mar. 31, 2020	9,723	12,121	417,578	802,935	(1,213,842)	(63,083)	(44,291)
Stock-based compensation	0	0	81	0	0	0	81
Vesting of RSU's	0	0	(7,416)	0	7,416	0	0
Net Income (loss)	0	0	0	(6,235)	0	0	(6,235)
Other comprehensive income	0	0	0	0	0	1,105	1,105
Balance at Jun. 30, 2020	9,723	12,121	410,243	796,700	(1,206,426)	(61,978)	(49,340)
Stock-based compensation	0	0	277	0	0	0	277
Vesting of RSU's	0	0	(16,975)	0	16,961	0	(14)
Net Income (loss)	0	0	0	(1,621)	0	0	(1,621)
Other comprehensive income	0	0	0	0	0	1,738	1,738
Balance at Sep. 30, 2020	9,723	12,121	393,545	795,079	(1,189,465)	(60,240)	(48,960)
Balance at Dec. 31, 2020	9,723	12,121	383,043	796,123	(1,178,799)	(65,611)	(53,123)
Stock-based compensation	0	0	210	0	0	0	210
Vesting of RSU's	0	0	(16,010)	0	15,980	0	(30)
Net Income (loss)	0	0	0	(1,758)	0	0	(1,758)
Other comprehensive income	0	0	0	0	0	278	278
Balance at Mar. 31, 2021	9,723	12,121	367,243	794,365	(1,162,819)	(65,333)	(54,423)
Balance at Dec. 31, 2020	9,723	12,121	383,043	796,123	(1,178,799)	(65,611)	(53,123)
Net Income (loss)							13,215
Other comprehensive income						744	744
Balance at Sep. 30, 2021	9,723	12,121	290,333	809,338	(1,085,312)	(64,867)	(38,387)
Balance at Mar. 31, 2021	9,723	12,121	367,243	794,365	(1,162,819)	(65,333)	(54,423)
Stock-based compensation	0	0	527	0	0	0	527
Vesting of RSU's	0	0	(24,124)	0	23,942	0	(182)
Net Income (loss)	0	0	0	10,569	0	0	10,569
Other comprehensive income	0	0	0	0	0	856	856
Exercise of Stock Options	0	0	(6,708)	0	6,802	0	94
Balance at Jun. 30, 2021	9,723	12,121	336,938	804,934	(1,132,075)	(64,477)	(42,559)
Stock-based compensation	0	0	329	0	0	0	329
Vesting of RSU's	0	0	(46,934)	0	46,763	0	(171)
Net Income (loss)	0	0	0	4,404	0	0	4,404
Other comprehensive income	0	0	0	0	0	(390)	(390)
Balance at Sep. 30, 2021	$ 9,723	$ 12,121	$ 290,333	$ 809,338	$ (1,085,312)	$ (64,867)	$ (38,387)