CONSOLIDATED STATEMENT OF SHAREHOLDERS' EQUITY - (UNAUDITED) - 6 months ended Jun. 30, 2018 - USD ($) $ in Thousands	Total	Common stock Par value	Additional paid in capital	Retained earnings	Accumulated other comprehensive income	Treasury stock
December 31, 2017 at Dec. 31, 2017	$ 40,241	$ 0	$ 34,928	$ 4,190	$ 5,984	$ (4,861)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(648)			(648)
Payment of cash dividends	(680)			(680)
Charge related to stock-based compensation	626		626
Issuance of unrestricted shares	245		(1,748)			1,993
Repurchase of common stock	(6,830)					(6,830)
Foreign currency translations	(1,692)				(1,692)
June 30, 2018 at Jun. 30, 2018	$ 31,262	$ 0	$ 33,806	$ 2,862	$ 4,292	$ (9,698)