CONSOLIDATED STATEMENT OF SHAREHOLDERS' EQUITY - (UNAUDITED) - 9 months ended Sep. 30, 2018 - USD ($) $ in Thousands	Total	Common stock Par value	Additional paid in capital	Retained earnings (deficit)	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	(2,310)			(2,310)
Payment of cash dividends	(1,883)			(1,883)
Charge related to stock-based compensation	765		765
Issuance of unrestricted shares	244		(1,821)			2,065
Stock Issued During Period, Value, Stock Options Exercised	15		(13)			28
Repurchase of common stock	(7,443)					(7,443)
Foreign currency translations	(1,757)				(1,757)
September 30, 2018 at Sep. 30, 2018	$ 27,872	$ 0	$ 33,859	$ (3)	$ 4,227	$ (10,211)