Balance Sheet Details (Details 4) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2013
Schedule of accumulated other comprehensive income
Balance as of December 31, 2012	$ 12,531
Other comprehensive loss before reclassification	1,391
Net other comprehensive income (loss) for nine months ended September 30, 2013	1,533
Balance as of September 30, 2013	14,064
Foreign Currency Translation Adjustment [Member]
Schedule of accumulated other comprehensive income
Balance as of December 31, 2012	16,376
Other comprehensive loss before reclassification	1,391
Net other comprehensive income (loss) for nine months ended September 30, 2013	1,391
Balance as of September 30, 2013	17,767
Defined Benefit Pension Plan [Member]
Schedule of accumulated other comprehensive income
Balance as of December 31, 2012	(3,845)
Other comprehensive loss before reclassification	0
Net other comprehensive income (loss) for nine months ended September 30, 2013	142
Balance as of September 30, 2013	(3,703)
Selling, General and Administrative Expenses
Schedule of accumulated other comprehensive income
Amounts reclassified from accumulated other comprehensive income (loss)	(142)
Selling, General and Administrative Expenses | Foreign Currency Translation Adjustment [Member]
Schedule of accumulated other comprehensive income
Amounts reclassified from accumulated other comprehensive income (loss)	0
Selling, General and Administrative Expenses | Defined Benefit Pension Plan [Member]
Schedule of accumulated other comprehensive income
Amounts reclassified from accumulated other comprehensive income (loss)	$ (142)