Accumulated Other Comprehensive Income (Details 1) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Mar. 31, 2014
TOTAL Balance	$ (4,320)	$ (19,146)	$ (13,969)	$ (7,472)	$ (4,320)
Current Period Change	1,995	(1,982)	11,644	(13,656)
TOTAL Balance	(2,325)	(21,128)	(2,325)	(21,128)	(4,320)
Unrealized gains losses on securities available-for-sale without other than temporary impairment [Member]
TOTAL Balance	3,296	3,023	(2,499)	17,044
Current Period Change	831	(2,250)	6,626	(16,271)
TOTAL Balance	4,127	773	4,127	773
Unrealized gains losses on securities available-for-sale with other than temporary impairment [Member]
TOTAL Balance	2,488	(1,818)	(1,136)	(3,613)
Current Period Change	1,048	(72)	4,672	1,723
TOTAL Balance	3,536	(1,890)	3,536	(1,890)
Total unrealized loss on securities available-for-sale [Member]
TOTAL Balance	5,784	1,205	(3,635)	13,431
Current Period Change	1,879	(2,322)	11,298	(14,548)
TOTAL Balance	7,663	(1,117)	7,663	(1,117)
Unrealized loss on retirement plans [Member]
TOTAL Balance	(10,104)	(20,351)	(10,334)	(20,903)
Current Period Change	116	340	346	892
TOTAL Balance	$ (9,988)	$ (20,011)	$ (9,988)	$ (20,011)