Accumulated Other Comprehensive Income (Details 1) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income (Loss), Net of Tax, Footnote	$ 13,502
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, before Reclassification Adjustments, Net of Tax	13,244	$ 10,221
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax	13,502	10,527
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax	258	306
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
TOTAL Balance	6,001	(12,927)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	13,502	10,527
TOTAL Balance	(7,501)	(23,454)
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	13,244	10,221
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax	13,098	10,224
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax	(146)	3
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
TOTAL Balance	27,991	4,119
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	13,098	10,224
TOTAL Balance	14,893	(6,105)
Unrealized gains losses on securities available-for-sale with other than temporary impairment [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
TOTAL Balance	2,425	2,399
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	(290)	58
TOTAL Balance	2,715	2,341
Unrealized gains losses on securities available-for-sale without other than temporary impairment [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
TOTAL Balance	25,566	1,720
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	13,388	10,166
TOTAL Balance	12,178	(8,446)
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
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax	404	303
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax	404	303
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
TOTAL Balance	(21,990)	(17,046)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	404	303
TOTAL Balance	$ (22,394)	$ (17,349)