Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	$ (68,599)	$ (10,596)
Change in Other comprehensive income before reclassification, Unrealized gains and Losses on available-for-sale Securities	(68,910)	(11,182)
Amount reclassified from accumalted other comperhensive income, unrealized gain and losses and available for sale securities	311	586
Net Current period other comprehensive other income, Unrealized gains and Losses on available-for-sale Securities	(68,599)	(10,596)
TOTAL Balance	(2,426)	9,764
TOTAL Balance	(71,025)	(832)
Accumulated Net Unrealized Investment Gain (Loss) [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	(68,914)	(11,068)
Change in Other comprehensive income before reclassification, Unrealized gains and Losses on available-for-sale Securities	(68,910)	(11,182)
Amount reclassified from accumalted other comperhensive income, unrealized gain and losses and available for sale securities	(4)	114
Net Current period other comprehensive other income, Unrealized gains and Losses on available-for-sale Securities	(68,914)	(11,068)
TOTAL Balance	15,674	34,162
TOTAL Balance	(53,240)	23,094
Accumulated Defined Benefit Plans Adjustment [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	315	472
Change in Other comprehensive income before reclassification, Unrealized gains and Losses on available-for-sale Securities	0	0
Amount reclassified from accumalted other comperhensive income, unrealized gain and losses and available for sale securities	315	472
Net Current period other comprehensive other income, Unrealized gains and Losses on available-for-sale Securities	315	472
TOTAL Balance	(18,100)	(24,398)
TOTAL Balance	$ (17,785)	$ (23,926)