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Provision For Income Taxes (Details 2) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Provision For Income Taxes Details 2      
Balance at January 1 $ 215
Additions for tax positions of prior years 50 215 0
Balance at December 31 $ 265 $ 215