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Consolidated Statements of Comprehensive Income (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Statement of Other Comprehensive Income [Abstract]      
Net income (loss) $ (6,822) $ 5,664 $ (6,826)
Other comprehensive income (loss), net of tax      
Unrealized gain (loss) from available-for-sale securities 0 0 (3)
Foreign currency translation gain (loss) 882 1,152 (1,241)
Foreign currency translation effect realized upon divestiture of subsidiary 0 (16,106) 1,907
Other comprehensive income (loss): 882 (14,954) 663
Comprehensive loss $ (5,940) $ (9,290) $ (6,163)