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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, 2017	$ 129,453	$ (337)		$ 143,467	$ 272,583
Net income				7,629	7,629
Payment of dividends				(220)	(220)
Stock-based compensation	926	98			1,024
Other				(1)	(1)
Balance at Mar. 31, 2018	130,379	(239)		150,875	281,015
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

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