Condensed Consolidated Statements of Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands	Common Stock [Member]	Treasury Stock [Member]	Additional Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total
Beginning Balance at Dec. 31, 2018	$ 32	$ (141,828)	$ 213,744	$ 76,835	$ (1,385)	$ 147,398
Beginning Balance (in shares) at Dec. 31, 2018	28,627	2,951
Stock-Based Compensation Expense			1,054			1,054
Release of Restricted Shares (in shares)	55
Common Stock Repurchased		$ (329)				(329)
Common Stock Repurchased (in shares)		28
Translation Adjustment					117	117
Net Income (Loss)				(4,924)		(4,924)
Ending Balance at Mar. 31, 2019	$ 32	$ (142,157)	214,798	71,911	(1,268)	143,316
Ending Balance (in shares) at Mar. 31, 2019	28,682	2,979
Beginning Balance at Dec. 31, 2018	$ 32	$ (141,828)	213,744	76,835	(1,385)	$ 147,398
Beginning Balance (in shares) at Dec. 31, 2018	28,627	2,951
Common Stock Repurchased (in shares)						0
Ending Balance at Dec. 31, 2019	$ 30	$ (142,314)	218,616	86,498	(1,580)	$ 161,250
Ending Balance (in shares) at Dec. 31, 2019	28,714	1,245
Stock-Based Compensation Expense			120			120
Release of Restricted Shares (in shares)	98
Common Stock Repurchased		$ (316)				$ (316)
Common Stock Repurchased (in shares)		48				0
Translation Adjustment					45	$ 45
Net Income (Loss)				12,235		12,235
Ending Balance at Mar. 31, 2020	$ 30	$ (142,630)	$ 218,736	$ 98,733	$ (1,535)	$ 173,334
Ending Balance (in shares) at Mar. 31, 2020	28,812	1,293