Consolidated Statements of Shareholders' Equity (Unaudited) - USD ($) $ in Thousands	Common Stock [Member]	Treasury Stock [Member]	AOCI Attributable to Parent [Member]	Retained Earnings [Member]	Total
Balance at Dec. 31, 2018	$ 130,778	$ (132)		$ 176,345	$ 306,991
Net income				2,074	2,074
Payment of dividends				(220)	(220)
Stock-based compensation	1,498				1,498
Changes in fair value of hedges, net of tax			(1,078)		(1,078)
Repurchase of common stock		(64)			(64)
Other	(1)				(1)
Balance at Mar. 31, 2019	132,275	(196)	(1,078)	178,199	309,200
Balance at Dec. 31, 2019	131,647	(335)	(2,281)	179,321	308,352
Net income				593	593
Payment of dividends				(220)	(220)
Stock-based compensation	359				359
Changes in fair value of hedges, net of tax			(2,548)		(2,548)
Repurchase of common stock		(145)			(145)
Other				1	1
Balance at Mar. 31, 2020	$ 132,006	$ (480)	$ (4,829)	$ 179,695	$ 306,392