CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY (Unaudited) (USD $) In Thousands, unless otherwise specified	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Noncontrolling Interest [Member]	Total
Balance at Dec. 31, 2014	$ 0	$ 35	$ 292,346	$ 42,439	$ (28,182)	$ (2,048)	$ 0	$ 304,590
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive loss	0	0	0	(2,913)	0	(1,677)	0	(4,590)
Exercise of stock options	0	1	1,137	0	0	0	0	1,138
Tax effect of stock options and restricted stock units	0	0	(838)	0	0	0	0	(838)
Share-based employee compensation expense	0	0	2,380	0	0	0	0	2,380
Proceeds from non-controlling interest	0	0	397	0	0	0	980	1,377
Balance at Mar. 31, 2015	$ 0	$ 36	$ 295,422	$ 39,526	$ (28,182)	$ (3,725)	$ 980	$ 304,057