Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Statement of Comprehensive Income
Net income, before tax amount	$ 48,130	$ 31,119	$ 30,315
Income tax expense (benefit)	12,011	7,475	6,662
Net income	36,119	23,644	23,653
Investment securities available for sale:
Unrealized holding gains (losses) on securities arising during the period, before tax	948	(603)	1,814
Unrealized holding gains (losses) on securities arising during the period, tax	226	(181)	482
Unrealized holding gains (losses) on securities arising during the period, net	722	(422)	1,332
Less: reclassification adjustment for gains (losses) on securities included in net income, before tax	605	93	373
Less: reclassification adjustment for gains (losses) on securities included in net income, tax	127	20	78
Less: reclassification adjustment for gains (losses) on securities included in net income, net of tax	478	73	295
Total unrealized gains (losses) on securities available for sale, before tax	343	(696)	1,441
Total unrealized gains (losses) on securities available for sale, tax	99	(201)	404
Total unrealized gains (losses) on securities available for sale, net of tax	244	(495)	1,037
Adjustments related to defined benefit plan:
Adjustments related to defined benefit plan, Amortization (accretion) of prior service cost, before tax	332	83	83
Adjustments related to defined benefit plan, Amortization (accretion) of prior service cost, tax	94	26	(53)
Adjustments related to defined benefit plan, Amortization (accretion) of prior service cost, net of tax	238	57	136
Total adjustments related to defined benefit plan, before tax	332	83	83
Total adjustments related to defined benefit plan, tax	94	26	(53)
Total adjustments related to defined benefit plan, net of tax	238	57	136
Net unrealized gains (losses) from cash flow hedges:
Unrealized holding gains (losses) on cash flow hedges arising during the period, before tax	1,435	(1,264)	(1,195)
Unrealized holding gains (losses) on cash flow hedges arising during the period, tax	406	(359)	(333)
Total unrealized gains (losses) on cash flow hedges, net of tax	1,029	(905)	(862)
Total unrealized gains (losses) on cash flow hedges, before tax	1,435	(1,264)	(1,195)
Total unrealized gains (losses) on cash flow hedges, tax	406	(359)	(333)
Total unrealized gains (losses) on cash flow hedges, net of tax	1,029	(905)	(862)
Total other comprehensive income (loss), before tax	2,110	(1,877)	329
Total other comprehensive income (loss), tax	599	(535)	18
Total other comprehensive income (loss), net of tax	1,511	(1,343)	311
Total comprehensive income, before tax	50,240	29,242	30,644
Total comprehensive income, tax	12,610	6,941	6,680
Total comprehensive income, net of tax	$ 37,630	$ 22,301	$ 23,964