Balance Sheet Details (Details 4) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014
Schedule of accumulated other comprehensive income
Balance as of December 31, 2013	$ 17,123
Other comprehensive loss before reclassification	849
Net other comprehensive income (loss) for three months ended March 31, 2014	878
Balance as of March 31, 2014	18,001
Foreign Currency Translation Adjustment [Member]
Schedule of accumulated other comprehensive income
Balance as of December 31, 2013	18,804
Other comprehensive loss before reclassification	849
Net other comprehensive income (loss) for three months ended March 31, 2014	849
Balance as of March 31, 2014	19,653
Defined Benefit Pension Plan [Member]
Schedule of accumulated other comprehensive income
Balance as of December 31, 2013	(1,681)
Other comprehensive loss before reclassification	0
Net other comprehensive income (loss) for three months ended March 31, 2014	29
Balance as of March 31, 2014	(1,652)
Selling, General and Administrative Expenses
Schedule of accumulated other comprehensive income
Amounts reclassified from accumulated other comprehensive income (loss)	(29)
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)	$ (29)