Consolidated Statements of Changes in Shareholders’ Equity - USD ($)	Total		Cumulative Effect, Period of Adoption, Adjustment	Unallocated Common Stock Held by ESOP	Unallocated Common Stock Held by ESOP Cumulative Effect, Period of Adoption, Adjustment	Common Stock	Common Stock Cumulative Effect, Period of Adoption, Adjustment	Additional Paid-In Capital	Additional Paid-In Capital Cumulative Effect, Period of Adoption, Adjustment	Retained Earnings	Retained Earnings Cumulative Effect, Period of Adoption, Adjustment	Treasury Stock	Treasury Stock Cumulative Effect, Period of Adoption, Adjustment	Accumulated Other Comprehensive Income (Loss)	Accumulated Other Comprehensive Income (Loss) Cumulative Effect, Period of Adoption, Adjustment
Balance at beginning of period (in shares) at Dec. 31, 2021						28,522,500
Balance at beginning of period at Dec. 31, 2021	$ 429,471,000			$ (21,905,000)		$ 285,000		$ 282,006,000		$ 169,457,000		$ 0		$ (372,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	593,000									593,000
Other comprehensive income (loss)	(18,375,000)	[1]												(18,375,000)
ESOP shares committed to be released	604,000			456,000				148,000
Balance at end of period (in shares) at Jun. 30, 2022						28,522,500
Balance at end of period at Jun. 30, 2022	412,293,000			(21,449,000)		$ 285,000		282,154,000		170,050,000		0		(18,747,000)
Balance at beginning of period (in shares) at Mar. 31, 2022						28,522,500
Balance at beginning of period at Mar. 31, 2022	420,214,000			(21,677,000)		$ 285,000		282,100,000		170,010,000		0		(10,504,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	40,000									40,000
Other comprehensive income (loss)	(8,243,000)	[1]												(8,243,000)
ESOP shares committed to be released	282,000			228,000				54,000
Balance at end of period (in shares) at Jun. 30, 2022						28,522,500
Balance at end of period at Jun. 30, 2022	$ 412,293,000			(21,449,000)		$ 285,000		282,154,000		170,050,000		0		(18,747,000)
Balance at beginning of period (in shares) at Dec. 31, 2022	27,523,219					27,523,219
Balance at beginning of period (in shares) (Accounting Standards Update 2016-13) at Dec. 31, 2022							0
Balance at beginning of period (in shares) (Accounting Standards Update 2022-02) at Dec. 31, 2022							0
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)		$ 0		$ 0		$ 0		$ (18,000)		$ 0		$ 0
Balance at beginning of period (Accounting Standards Update 2022-02) at Dec. 31, 2022			$ (8,000)		$ 0		$ 0		$ 0		$ (8,000)		$ 0		$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	(3,034,000)									(3,034,000)
Other comprehensive income (loss)	1,594,000	[1]												1,594,000
Purchase of Treasury stock (in shares)						(2,762,577)
Purchase of Treasury stock	(27,645,000)											(27,645,000)
Treasury stock allocated to restricted stock plan (in shares)						732,780
Treasury stock allocated to restricted stock plan	0							(8,657,000)				8,657,000
Compensation cost for stock options and restricted stock	1,444,000							1,444,000
ESOP shares committed to be released	$ 483,000			457,000				26,000
Balance at end of period (in shares) at Jun. 30, 2023	25,493,422					25,493,422
Balance at end 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)
Balance at beginning of period (in shares) at Mar. 31, 2023						27,385,482
Balance at beginning of period at Mar. 31, 2023	385,693,000			(20,764,000)		$ 285,000		271,507,000		170,528,000		(12,737,000)		(23,126,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	(1,825,000)									(1,825,000)
Other comprehensive income (loss)	1,000	[1]												1,000
Purchase of Treasury stock (in shares)						(1,892,060)
Purchase of Treasury stock	(18,323,000)											(18,323,000)
Compensation cost for stock options and restricted stock	768,000							768,000
ESOP shares committed to be released	$ 220,000			228,000				(8,000)
Balance at end of period (in shares) at Jun. 30, 2023	25,493,422					25,493,422
Balance at end 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)

[1] Reflects deferred tax valuation allowance.