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Condensed Consolidated Statements of Comprehensive Loss (Unaudited) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2013
Jun. 30, 2012
Statements of Comprehensive Loss [Abstract]        
Net loss $ (3,120) $ (3,427) $ (6,690) $ (5,015)
Other comprehensive income (loss):        
Foreign currency translation adjustments 41 (72) 54 (28)
Total comprehensive loss $ (3,079) $ (3,499) $ (6,636) $ (5,043)