Investment Securities (Narrative) (Details)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2022 USD ($) Item	Sep. 30, 2021 USD ($)	Sep. 30, 2022 USD ($) Item	Sep. 30, 2021 USD ($) Item	Dec. 31, 2021 USD ($)
Debt Securities, Available-for-sale and Held-to-maturity [Line Items]
Amortized cost	$ 299,273,000		$ 299,273,000		$ 405,853,000
Fair Value	248,571,000		248,571,000		401,542,000
Pledged und public funds, fair value	0		0
OCI, Debt Securities, Available-for-Sale, Transfer from Held-to-Maturity, Gain (Loss), before Adjustment and Tax	(52,000)	$ 43,000	(177,000)	$ 43,000
Debt Securities Available For Sale Realized Gain Loss	$ (558,000)	$ (70,000)	$ (540,000)	$ 179,000
Number Of Securities, Any One Issuer | Item	0		0
Florida [Member]
Debt Securities, Available-for-sale and Held-to-maturity [Line Items]
Ratio of outstanding uninsured deposits for public deposits secured by securities pledged			25.00%
Pledged und public funds, fair value	$ 141,700,000		$ 141,700,000		37,300,000
Maximum [Member]
Debt Securities, Available-for-sale and Held-to-maturity [Line Items]
Pledged und public funds, fair value	20,000,000.0		20,000,000.0
Corporate Bond Securities [Member]
Debt Securities, Available-for-sale and Held-to-maturity [Line Items]
Amortized cost	4,039,000		4,039,000		12,068,000
Fair Value	3,662,000		$ 3,662,000		12,550,000
Corporate Bond Securities [Member] | Florida [Member]
Debt Securities, Available-for-sale and Held-to-maturity [Line Items]
Number of investment securities | Item			17	11
Pledged und public funds, fair value	39,100,000		$ 39,100,000		20,400,000
Investment Securities Transferred from Available-for-Sale to Held-to-Maturity [Member]
Debt Securities, Available-for-sale and Held-to-maturity [Line Items]
Fair Value	63,800,000		63,800,000		68,700,000
Net unrealized gain	$ (10,600,000)				$ 1,100,000
Unrealized losses			116,200,000
Debt Securities Available For Sale Realized Gain Loss			$ 0