Condensed Consolidated Statements Of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Condensed Consolidated Statements Of Comprehensive Income [Abstract]
Net income	$ 92	$ 846
Other comprehensive income (loss), before tax:
Foreign currency translation adjustments	211	98
Unrealized gains (losses) on available-for-sale securities	(6)	10
Unrealized gains (losses) on foreign exchange forward contracts:
Unrealized gains (losses) on foreign exchange forward contracts for the period	323	(26)
Reclassification adjustment for gains included in net income	75	27
Total unrealized gains on foreign exchange forward contracts	398	1
Other comprehensive income, before tax	603	109
Income tax expense related to items of other comprehensive income	(136)	(3)
Other comprehensive income, net of tax	467	106
Total comprehensive income	$ 559	$ 952