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Income Taxes (Details 1) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Current:      
U.S. Federal $ (115)      
State 345 113 183
Non-U.S. 2,910 6,023 3,968
Total current expense (benefit) 3,140 6,136 4,151
Deferred:      
U.S. Federal 2,789 534 (2,732)
State 12 170 (160)
U.S. deferred tax valuation allowance (9,814) (704) 2,892
Non-U.S. (54) (968) 418
Total deferred expense (benefit) (7,067) (968) 418
Total expense (benefit) $ (3,927) $ 5,168 $ 4,569