Consolidated Statements of Comprehensive Income (Parenthetical) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015		Mar. 31, 2014
Consolidated Statements of Comprehensive Income (Parenthetical) [Abstract]
Unrealized gains (losses) arising during the period on available for sale securities, tax	$ 244		$ 599
Reclassification adjustment for net gain on sales of available for sale securities included in net income, tax	(60)	[1]	(51)	[1]
Change in defined benefit plans, tax	$ 1	[1]	$ 1	[1]

[1] Income tax amounts are included in the provision for income taxes in the Consolidated Statements of Income