Investment Securities (Schedule of amortized cost, gross unrealized gains and losses and fair values of available for sale securities) (Details) - USD ($) $ in Thousands		Sep. 30, 2022	Dec. 31, 2021
Debt Securities, Available-for-sale [Line Items]
Amortized Cost		$ 264,517	$ 283,744
Gross Unrealized Gains		207	571
Gross Unrealized Losses		(35,694)	(4,032)
Fair Value		229,030	280,283
U.S. Treasury securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost		40,198	60,273
Gross Unrealized Gains			2
Gross Unrealized Losses		(2,558)	(450)
Fair Value		37,640	59,825
U.S. government agency mortgage-backed securities-residential
Debt Securities, Available-for-sale [Line Items]
Amortized Cost		179,064	179,493
Gross Unrealized Gains			344
Gross Unrealized Losses		(28,942)	(3,346)
Fair Value		150,122	176,491
U.S. government agency securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost		24,788	24,800
Gross Unrealized Gains			53
Gross Unrealized Losses		(2,531)	(131)
Fair Value		22,257	24,722
Municipal securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	[1]	5,124	6,858
Gross Unrealized Gains	[1]		33
Gross Unrealized Losses	[1]	(407)	(40)
Fair Value	[1]	4,717	6,851
Corporate Bonds
Debt Securities, Available-for-sale [Line Items]
Amortized Cost		14,700	11,700
Gross Unrealized Gains		5	117
Gross Unrealized Losses		(1,256)	(65)
Fair Value		13,449	11,752
Other
Debt Securities, Available-for-sale [Line Items]
Amortized Cost		643	620
Gross Unrealized Gains		202	22
Fair Value		$ 845	$ 642

[1] The issuers of municipal securities are all within New York State.