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INCOME TAXES (Details 5) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]      
Balance at beginning of year $ 2,305 $ 2,342 $ 2,743
Additions for tax positions related to current year 302 282 182
Additions for tax positions of prior years 72 263 430
Reductions for tax positions of prior years (832) 0 (393)
Reductions due to lapse of applicable statues of limitations 0 (582) (620)
Balance at end of year $ 1,847 $ 2,305 $ 2,342