Consolidated Statements of Changes in Shareholders’ Equity - USD ($)	Total		Cumulative Effect, Period of Adoption, Adjustment	Unallocated Common Stock Held by ESOP	Common Stock	Additional Paid-In Capital	Retained Earnings	Retained Earnings Cumulative Effect, Period of Adoption, Adjustment	Treasury Stock	Accumulated Other Comprehensive Income (Loss)
Balance at beginning of period (in shares) at Dec. 31, 2022					27,523,219
Balance at beginning of period at Dec. 31, 2022	$ 393,718,000			$ (20,993,000)	$ 285,000	$ 279,454,000	$ 171,763,000		$ (12,072,000)	$ (24,719,000)
Balance at beginning of period (Accounting Standards Update 2016-13) at Dec. 31, 2022			$ (18,000)					$ (18,000)
Balance at beginning of period (Accounting Standards Update 2022-02) at Dec. 31, 2022			$ (8,000)					$ (8,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(4,466,000)						(4,466,000)
Net current period other comprehensive (loss) gain	(2,433,000)	[1]								(2,433,000)
Purchase of Treasury stock (in shares)					(3,060,787)
Purchase of Treasury stock	(30,480,000)								(30,480,000)
Treasury stock allocated to restricted stock plan, net of forfeitures (in shares)					711,980
Treasury stock allocated to restricted stock plan, net of forfeitures	0					(8,411,000)			8,411,000
Compensation cost for stock options and restricted stock	2,137,000					2,137,000
ESOP shares committed to be released	699,000			685,000		14,000
Balance at end of period (in shares) at Sep. 30, 2023					25,174,412
Balance at end of period at Sep. 30, 2023	359,149,000			(20,308,000)	$ 285,000	273,194,000	167,271,000		(34,141,000)	(27,152,000)
Balance at beginning of period (in shares) at Jun. 30, 2023					25,493,422
Balance at beginning of period at Jun. 30, 2023	366,534,000			(20,536,000)	$ 285,000	272,267,000	168,703,000		(31,060,000)	(23,125,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(1,432,000)						(1,432,000)
Net current period other comprehensive (loss) gain	(4,027,000)	[1]								(4,027,000)
Purchase of Treasury stock (in shares)					(298,210)
Purchase of Treasury stock	(2,835,000)								(2,835,000)
Treasury stock allocated to restricted stock plan, net of forfeitures (in shares)					20,800
Treasury stock allocated to restricted stock plan, net of forfeitures	0					246,000			(246,000)
Compensation cost for stock options and restricted stock	693,000					693,000
ESOP shares committed to be released	216,000			228,000		(12,000)
Balance at end of period (in shares) at Sep. 30, 2023					25,174,412
Balance at end of period at Sep. 30, 2023	$ 359,149,000			(20,308,000)	$ 285,000	273,194,000	167,271,000		(34,141,000)	(27,152,000)
Balance at beginning of period (in shares) at Dec. 31, 2023	24,509,950				24,509,950
Balance at beginning of period at Dec. 31, 2023	$ 355,640,000			(20,080,000)	$ 285,000	273,991,000	164,340,000		(40,016,000)	(22,880,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(9,224,000)						(9,224,000)
Net current period other comprehensive (loss) gain	4,248,000	[1]								4,248,000
Purchase of Treasury stock (in shares)					(1,464,390)
Purchase of Treasury stock	(14,348,000)								(14,348,000)
Treasury stock allocated to restricted stock plan, net of forfeitures (in shares)					(54,652)
Treasury stock allocated to restricted stock plan, net of forfeitures	(18,000)					314,000			(332,000)
Compensation cost for stock options and restricted stock	2,348,000					2,348,000
ESOP shares committed to be released	$ 653,000			685,000		(32,000)
Balance at end of period (in shares) at Sep. 30, 2024	22,990,908				22,990,908
Balance at end of period at Sep. 30, 2024	$ 339,299,000			(19,395,000)	$ 285,000	276,621,000	155,116,000		(54,696,000)	(18,632,000)
Balance at beginning of period (in shares) at Jun. 30, 2024					23,505,357
Balance at beginning of period at Jun. 30, 2024	345,597,000			(19,623,000)	$ 285,000	275,890,000	159,157,000		(49,229,000)	(20,883,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(4,041,000)						(4,041,000)
Net current period other comprehensive (loss) gain	2,251,000	[1]								2,251,000
Purchase of Treasury stock (in shares)					(521,685)
Purchase of Treasury stock	(5,556,000)								(5,556,000)
Treasury stock allocated to restricted stock plan, net of forfeitures (in shares)					7,236
Treasury stock allocated to restricted stock plan, net of forfeitures	1,000					(88,000)			89,000
Compensation cost for stock options and restricted stock	811,000					811,000
ESOP shares committed to be released	$ 236,000			228,000		8,000
Balance at end of period (in shares) at Sep. 30, 2024	22,990,908				22,990,908
Balance at end of period at Sep. 30, 2024	$ 339,299,000			$ (19,395,000)	$ 285,000	$ 276,621,000	$ 155,116,000		$ (54,696,000)	$ (18,632,000)

[1] Reflects deferred tax valuation allowance.