Income Taxes (Details) (USD $) In Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2011
Income Taxes
Current income tax expense	$ 206	$ 971
Current foreign income tax expense	88	564
Current state income tax expense	118	407
Deferred tax provision	101	101
Recognized deferred tax provision (benefit)	$ 228	$ 228