Condensed Consolidated Statement of Stockholders' Equity (Unaudited) - 6 months ended Jun. 30, 2018 - USD ($) shares in Thousands, $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Noncontrolling Interest [Member]	Total
Balance (in shares) at Dec. 31, 2017	52,526
Balance, beginning at Dec. 31, 2017	$ 525	$ 158,969	$ (3,579)	$ (2,396)	$ 991	$ 154,510
Cumulative effect of new accounting principles adopted			4,938			4,938
Total comprehensive income (loss)			5,543	419	(72)	5,890
Stock compensation		567				567
Surrender of shares to cover minimum withholding taxes on stock-based compensation		(410)				(410)
Issuance of common stock, pursuant to stock plans, $.01 par (in shares)	658
Issuance of common stock, pursuant to stock plans, $.01 par	$ 7	104				111
Contributions from noncontrolling interest					40	40
Balance (in shares) at Jun. 30, 2018	53,184
Balance, ending at Jun. 30, 2018	$ 532	$ 159,230	$ 6,902	$ (1,977)	$ 959	$ 165,646