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Other Accrued Expenses and Other Current Liabilities (Details 1) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Other Accrued Expenses and Liability [Line Items]      
Balance at beginning of year $ 197 $ 78 $ 679
Additions (reversal) charged to expense 364 856 (321)
Amounts utilized (440) (737) (280)
Balance at end of year $ 121 $ 197 $ 78