Comprehensive Income (Loss), Net of Tax - Reclassification Out of Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest expense	$ 5,195	$ 12,694	$ 21,710
Salaries and Employee Benefits	44,798	42,061	38,402
Total before tax	64,404	51,863	47,075
Provision for Income Taxes	(14,547)	(11,036)	(9,600)
NET INCOME	49,857	40,827	37,475
Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
NET INCOME	(147)	(354)	(677)
Net Unrealized Gains on Cash Flow Swap | Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest expense	126
Net Prior Service (Cost) Credit | Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Salaries and Employee Benefits	(232)	(211)	(224)
Net Actuarial Gain (Loss) | Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Salaries and Employee Benefits	(91)	(227)	(684)
Accumulated Defined Benefit Plans Adjustment Attributable to Parent | Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total before tax	(197)	(438)	(908)
Provision for Income Taxes	50	112	231
NET INCOME	$ (147)	(326)	$ (677)
Unrealized Gains and Losses on Available for Sale Securities | Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Loss on Securities Transactions, Net		(37)
Total before tax		(37)
Provision for Income Taxes		9
NET INCOME		$ (28)