Accumulated Comprehensive Income (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance		$ 1,603	$ 154	$ 767	$ (1,225)
Other comprehensive income (loss) before reclassifications (net of tax)		(1,351)	986	(464)	2,471
Amounts reclassified from accumulated other comprehensive income (net of tax)		(81)	(40)	(132)	(146)
Net current period other comprehensive income (loss)		(1,432)	946	(596)	2,325
Ending Balance		171	1,100	171	1,100
Unrealized Gains (Loss) On Available For Sale Securities [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	[1]	3,897	1,264	3,093	(108)
Other comprehensive income (loss) before reclassifications (net of tax)	[1]	(1,351)	986	(464)	2,471
Amounts reclassified from accumulated other comprehensive income (net of tax)	[1]	(116)	(49)	(199)	(162)
Net current period other comprehensive income (loss)	[1]	(1,467)	937	(663)	2,309
Ending Balance	[1]	2,430	2,201	2,430	2,201
Defined Benefit Pension Items [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	[1]	(2,294)	(1,110)	(2,326)	(1,117)
Other comprehensive income (loss) before reclassifications (net of tax)	[1]	0	0	0	0
Amounts reclassified from accumulated other comprehensive income (net of tax)	[1]	35	9	67	16
Net current period other comprehensive income (loss)	[1]	35	9	67	16
Ending Balance	[1]	$ (2,259)	$ (1,101)	$ (2,259)	$ (1,101)

[1] Amounts in parentheses indicate debits to the Consolidated Balance Sheet