Securities, Gains (Loss) on Securities, Securities Pledged, and Securities Sold Under Agreements to Repurchase (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2021 USD ($) Security	Sep. 30, 2020 USD ($) Security	Dec. 31, 2020 USD ($)
Gains (Loss) on Sales of Securities [Abstract}
Net securities gain	$ (62)	$ 142	$ 50	$ 1,328
Realized pre-tax gain on sales and calls of AFS securities		23	62	1,000
Realized pre-tax loss on sales and calls of AFS securities			2
Unrealized (loss) gain from fair market value adjustment of equity securities	(62)	119	(10)	$ 259
Equity securities at fair value	2,461		2,461		$ 2,471
Securities pledged as collateral to secure public deposit and for other purposes	434,400		434,400		354,500
Amortized cost of securities sold under agreements to repurchase	389,200		389,200		$ 386,600
Visa Class B Restricted Stock [Member]
Gains (Loss) on Sales of Securities [Abstract}
Equity securities at fair value	2,500		$ 2,500
Increase (Decrease) in fair market value of equity securities	$ (62)	$ 119
Number of equity securities sold (in shares) | Security			0	0