Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Statement Of Income And Comprehensive Income [Abstract]
Net income, Before tax amount	$ 5,241	$ 4,534
Net unrealized holding (losses) gains on available-for-sale securities:
Unrealized holding (losses) gains arising during the period, Before tax amount	11,152	(46,331)
Reclassification adjustment for losses (gains) included in net income, Before tax amount	257	(1)
Other comprehensive (loss) income, Before tax amount	11,409	(46,332)
Unrealized holding (losses) gains arising during the period, Tax expense (benefit)	2,342	(9,731)
Reclassification adjustment for losses (gains) included in net income, Tax expense (benefit)	54
Other comprehensive (loss) income, Tax expense (benefit)	2,396	(9,731)
Unrealized holding (losses) gains arising during the period, Net of tax amount	8,810	(36,600)
Reclassification adjustment for losses (gains) included in net income, Net of tax amount	203	(1)
Other comprehensive (loss) income, Net of tax amount	9,013	(36,601)
Total comprehensive (loss) income, Before tax amount	16,650	(41,798)
Tax expense (benefit)	1,123	824
Total comprehensive (loss) income, Tax expense (benefit)	3,519	(8,907)
Net income	4,118	3,710
Total comprehensive (loss) income, Net of tax amount	$ 13,131	$ (32,891)