Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Assets and liabilities measured at fair value [Abstract]
Money market fund	$ 12,129	$ 11,661
Foreign exchange contracts - Assets	124	92
Total assets	12,253	11,753
Foreign exchange contracts - Liabilities	107	24
Total liabilities	107	24
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Assets and liabilities measured at fair value [Abstract]
Money market fund	12,129	11,661
Foreign exchange contracts - Assets	0	0
Total assets	12,129	11,661
Foreign exchange contracts - Liabilities	0	0
Total liabilities	0	0
Significant Other Observable Inputs (Level 2) [Member]
Assets and liabilities measured at fair value [Abstract]
Money market fund	0	0
Foreign exchange contracts - Assets	124	92
Total assets	124	92
Foreign exchange contracts - Liabilities	107	24
Total liabilities	107	24
Significant Unobservable Inputs (Level 3) [Member]
Assets and liabilities measured at fair value [Abstract]
Money market fund	0	0
Foreign exchange contracts - Assets	0	0
Total assets	0	0
Foreign exchange contracts - Liabilities	0	0
Total liabilities	$ 0	$ 0