Accumulated Other Comprehensive Loss (Schedule of accumulated other comprehensive loss activity) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance	$ 108,132	$ 125,969
Balance	$ 110,717	$ 117,293
Income tax rate	21.00%	21.00%
Accumulated Other Comprehensive Loss
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance	$ (32,189)	$ (6,635)
Other comprehensive income (loss) before reclassifications	2,221	(10,939)
Period change	2,221	(10,939)
Balance	(29,968)	(17,574)
Defined Benefit Pension Plan
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance	(3,997)	(3,901)
Balance	(3,997)	(3,901)
Unrealized (losses) gains on available for sale securities
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance	(28,192)	(2,734)
Other comprehensive income (loss) before reclassifications	2,221	(10,939)
Period change	2,221	(10,939)
Balance	$ (25,971)	$ (13,673)