Consolidated Statements of Comprehensive Loss - USD ($)		3 Months Ended		9 Months Ended
		Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Statement of Comprehensive Income [Abstract]
Net loss		$ (4,041,000)	$ (1,432,000)	$ (9,224,000)	$ (4,466,000)
Unrealized gain (loss) on securities available-for-sale:
Unrealized gain (loss) arising during the period		8,568,000	(5,926,000)	7,820,000	(5,687,000)
Unrealized gain (loss) on securities available-for-sale:		8,568,000	(5,926,000)	7,820,000	(5,687,000)
Unrealized (loss) gain on cash flow hedge:
Unrealized (loss) gain arising during the period		(7,940,000)	3,435,000	(8,461,000)	7,144,000
Reclassification adjustment for gain (loss) included in net loss		1,620,000	(1,535,000)	4,882,000	(3,885,000)
Unrealized (loss) gain on cash flow hedge:		(6,320,000)	1,900,000	(3,579,000)	3,259,000
Post-retirement plans:
Reclassification adjustment for amortization of: Net actuarial loss (gain)		3,000	(1,000)	7,000	(5,000)
Unrealized loss (gain) on post-retirement plans		3,000	(1,000)	7,000	(5,000)
Total other comprehensive income, after tax	[1]	2,251,000	(4,027,000)	4,248,000	(2,433,000)
Comprehensive loss		$ (1,790,000)	$ (5,459,000)	$ (4,976,000)	$ (6,899,000)

[1] Reflects deferred tax valuation allowance.