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Consolidated Statements of Comprehensive Income (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Consolidated Statements of Comprehensive Income [Abstract]    
Net income $ 3,047 $ 7,907
Other comprehensive income (loss):    
Foreign currency translation adjustments 2,132 (4,863)
Employee benefit related 161 (4,668)
Reclassification adjustment for net gain on marketable securities included in net income (1,685) 0
Unrealized gain on marketable securities 0 1,685
Other comprehensive income (loss), net of tax 608 (7,846)
Total comprehensive income $ 3,655 $ 61