Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Net cash provided by (used in) operating activities	$ 5,671	$ (5,724)
Cash flows from investing activities:
Distribution from Joint Venture		1,509
Capital expenditures	(197)	(172)
Proceeds from sale of assets	2	3,043
Net cash (used in) provided by investing activities	(195)	4,380
Cash flows from financing activities:
Excess tax benefits from share-based arrangements	(11)
Purchase of treasury stock		(2,667)
Proceeds from employee stock purchase plan	3
Net cash used in financing activities	(8)	(2,667)
Effect of exchange rate changes on cash and cash equivalents	(515)	(24)
Net increase (decrease) in cash and cash equivalents	4,953	(4,035)
Cash and cash equivalents at beginning of period	40,168	39,889
Cash and cash equivalents at end of period	$ 45,121	$ 35,854