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ACCUMULATED OTHER COMPREHENSIVE LOSS (Details 1) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Unrealized gains and losses on sale of securities      
Net realized gains on investment securities $ 115 [1] $ 177 [1] $ 71
Provision for income taxes 39 [1] 60 [1] $ 25
Net of tax [1] (76) (117)  
Amortization of defined benefit items      
Recognized net actuarial loss [1],[2] (318) 788  
Provision for income taxes [1],[2] 108 (268)  
Net of tax [1],[2] (210) 520  
Total reclassifications for the period [1],[2] $ (286) $ 403  
[1] Amounts in parentheses indicate credits.
[2] These accumulated other comprehensive loss components are included in the computation of net periodic benefit cost (see Note 14 for additional details).