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Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Statement of Comprehensive Income [Abstract]
Net income	$ 39,121	$ 37,411	$ 26,991
Other comprehensive income (loss):
Unrealized holding gains (losses) on securities available-for-sale	(5,839)	6,979	8,498
Income tax effect	1,367	(1,635)	(2,294)
Reclassification adjustment for (gain) loss recognized in income	(3,875)	(914)	166
Income tax effect	908	214	(44)
Change in defined benefit pension plan	770	(1,403)	(1,467)
Income tax effect	(180)	329	396
Reclassification adjustment for amortization of net actuarial loss recognized in income	507	420	271
Income tax effect	(119)	(98)	(73)
Reclassification adjustment for carrying value adjustment - investment hedge recognized in income	862	(473)	44
Income tax effect	(233)	128	(12)
Total other comprehensive income (loss)	(5,832)	3,547	5,485
Comprehensive income	$ 33,289	$ 40,958	$ 32,476

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