Accumulated Other Comprehensive Income (Details 1) - 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]
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, before Reclassification Adjustments, Net of Tax	$ 4,464	$ 1,879	$ 1,654	$ 11,297
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax	5,290	1,995	5,771	11,644
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax	826	116	4,117	347
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
TOTAL Balance	(8,758)	(2,325)	(8,758)	(2,325)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	5,290	1,995	5,771	11,644
TOTAL Balance	(14,048)	(4,320)	(14,529)	(13,969)
Accumulated Net Unrealized Investment Gain (Loss) [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, before Reclassification Adjustments, Net of Tax	4,464	1,879	1,654	11,297
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax	4,471	1,879	1,669	11,298
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax	7	0	15	1
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
TOTAL Balance	11,947	7,663	11,947	7,663
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	4,471	1,879	1,669	11,298
TOTAL Balance	7,476	5,784	10,278	(3,635)
Unrealized gains losses on securities available-for-sale with other than temporary impairment [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
TOTAL Balance	3,287	3,536	3,287	3,536
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	240	1,048	173	4,672
TOTAL Balance	3,047	2,488	3,114	(1,136)
Unrealized gains losses on securities available-for-sale without other than temporary impairment [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
TOTAL Balance	8,660	4,127	8,660	4,127
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	4,231	831	1,496	6,626
TOTAL Balance	4,429	3,296	7,164	(2,499)
Accumulated Defined Benefit Plans Adjustment [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, before Reclassification Adjustments, Net of Tax	0	0	0	0
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax	819	116	4,102	346
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax	819	116	4,102	346
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
TOTAL Balance	(20,705)	(9,988)	(20,705)	(9,988)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	819	116	4,102	346
TOTAL Balance	$ (21,524)	$ (10,104)	$ (24,807)	$ (10,334)