UNAUDITED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
STATEMENTS OF COMPREHENSIVE INCOME
Amortization and reversal of net unrealized loss on securities transferred from available-for-sale to held-to-maturity, taxes	$ 10	$ 8	$ 21	$ 16
Reduction in (adjustment to) non-credit component of OTTI charge, taxes	(16)	4	(12)	8
Reclassification adjustment for securities sold during the period, taxes	2	0	(624)	0
Net unrealized securities gains arising during the period, tax	(2)	57	15	27
Defined benefit plan adjustments, tax	$ 210	$ 117	$ (58)	$ 234