Income Taxes (Schedule of Income Tax Rate Reconciliation) (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Effective Income Tax Rate Reconciliation [Abstract]
Tax expense (benefit) at Federal statutory rate		$ 14,157	$ (8,152)	$ 11,861
Federal statutory rate		21.00%	21.00%	21.00%
(Decrease) increase in taxes resulting from:
State and local income tax expense (benefit), net of federal tax effect	[1]	$ 2,212	$ (1,037)	$ (2,145)
State and local income tax expense (benefit), net of federal tax effect, rate	[1]	3.30%	2.70%	(3.70%)
Foreign tax effects		$ 0	$ 0	$ 0
Foreign tax effects, rate		0.00%	0.00%	0.00%
Effect of changes in tax laws or rates enacted in the current period		$ 0	$ 0	$ 0
Effect of changes in tax laws or rates enacted in the current period, rate		0.00%	0.00%	0.00%
Effect of cross-border tax laws		$ 0	$ 0	$ 0
Effect of cross-border tax laws, rate		0.00%	0.00%	0.00%
Investments in low-income housing limited partnerships		$ (1,976)	$ (1,905)	$ (1,812)
Investments in low-income housing limited partnerships		(2.90%)	4.90%	(3.20%)
Changes in valuation allowance		$ 0	$ 0	$ 0
Changes in valuation allowance, rate		0.00%	0.00%	0.00%
BOLI		$ (703)	$ (639)	$ (732)
BOLI, rate		(1.00%)	1.60%	(1.30%)
Investments in low-income housing limited partnerships proportional amortization and other benefits		$ 1,594	$ 1,485	$ 1,455
Investments in low-income housing limited partnerships proportional amortization and other benefits, rate		2.30%	(3.80%)	2.60%
Tax exempt income		$ (1,145)	$ (1,115)	$ (1,077)
Tax exempt income, rate		(1.70%)	2.90%	(1.90%)
Nondeductible interest expense		$ 592	$ 655	$ 534
Nondeductible interest expense, rate		0.90%	(1.70%)	0.90%
Other		$ 438	$ (51)	$ 221
Other, rate		0.60%	0.10%	0.30%
Changes in unrecognized tax benefits		$ 0	$ 0	$ 0
Changes in unrecognized tax benefits, rate		0.00%	0.00%	0.00%
Income tax expense (benefit)		$ 15,169	$ (10,759)	$ 8,305
Effective tax rate		22.50%	27.70%	14.70%
Tax Jurisdiction of Domicile [Extensible Enumeration]		United States	United States	United States

[1] Massachusetts taxes represent the majority (greater than 50%) of state and local tax expense (benefit). Also, 2023 includes the impact of a revaluation of deferred tax assets and liabilities due to a Commonwealth of Massachusetts tax bill enacted into law.