Consolidated Statements of Comprehensive Income (Loss) - USD ($)		3 Months Ended		6 Months Ended
		Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Statement of Comprehensive Income [Abstract]
Net (loss) income		$ (1,825,000)	$ 40,000	$ (3,034,000)	$ 593,000
Unrealized (loss) gain on securities available-for-sale:
Unrealized (loss) gain arising during the period		(3,800,000)	(10,805,000)	239,000	(26,544,000)
Reclassification adjustment for gain included in net income		0	(14,000)	0	(14,000)
Unrealized (loss) gain on securities available-for-sale:		(3,800,000)	(10,819,000)	239,000	(26,558,000)
Unrealized gain (loss) on cash flow hedge:
Unrealized gain arising during the period		5,149,000	2,214,000	3,709,000	7,451,000
Reclassification adjustment for (gain) loss included in net income		(1,346,000)	146,000	(2,350,000)	468,000
Unrealized (loss) gain on cash flow hedge		3,803,000	2,360,000	1,359,000	7,919,000
Post-Retirement plans:
Net benefit arising from plan amendment	[1]	0	164,000	0	164,000
Net actuarial (gain) loss		(2,000)	52,000	(4,000)	100,000
Unrealized (gain) loss on post-retirement plans		(2,000)	216,000	(4,000)	264,000
Total other comprehensive (loss) income, net of tax	[2]	1,000	(8,243,000)	1,594,000	(18,375,000)
Comprehensive loss		$ (1,824,000)	$ (8,203,000)	$ (1,440,000)	$ (17,782,000)

[1] Benefit arising from plan amendment approved in June 2022.

[2] Reflects deferred tax valuation allowance.