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Stock Option Programs and Share-based Compensation Expense (Details 2) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Share-based compensation $ 77 $ 115
Estimated tax benefit (28) (41)
Total share-based compensation, net of tax benefit $ 49 $ 74