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Other Accrued Expenses and Other Current Liabilities (Details 1) - Accrued Warranty Costs [Member] - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Other Accrued Expenses and Liability [Line Items]      
Balance at beginning of year $ 103 $ 121 $ 197
Additions charged to expense 1,121 355 364
Amounts utilized (997) (373) (440)
Balance at end of year $ 227 $ 103 $ 121