Accumulated Comprehensive Income (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance		$ 171	$ 1,100	$ 767	$ (1,225)
Other comprehensive income (loss) before reclassifications, net of tax		722	564	258	3,035
Amounts reclassified from accumulated other comprehensive income (loss), net of tax		(51)	(151)	(183)	(297)
Net current period other comprehensive income (loss)		671	413	75	2,738
Ending Balance		842	1,513	842	1,513
Unrealized Gains (Loss) On Available For Sale Securities [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	[1]	2,430	2,201	3,093	(108)
Other comprehensive income (loss) before reclassifications, net of tax	[1]	722	564	258	3,035
Amounts reclassified from accumulated other comprehensive income (loss), net of tax	[1]	(85)	(160)	(284)	(322)
Net current period other comprehensive income (loss)	[1]	637	404	(26)	2,713
Ending Balance	[1]	3,067	2,605	3,067	2,605
Defined Benefit Pension Items [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	[1]	(2,259)	(1,101)	(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 (loss), net of tax	[1]	34	9	101	25
Net current period other comprehensive income (loss)	[1]	34	9	101	25
Ending Balance	[1]	$ (2,225)	$ (1,092)	$ (2,225)	$ (1,092)

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