Credit Quality and Allowance for Credit Losses - Summary of Information Pertaining to Collateral Dependent Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2026	Dec. 31, 2025	Sep. 30, 2025	Dec. 31, 2024
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 2,774,864	$ 2,744,023
ACL	34,427	33,142	$ 32,827	$ 32,916
Collateral Pledged
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	8,926	6,206
ACL	3,015	1,265
One- to four-family first mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	469,700	493,446
ACL	4,041	5,062	5,219	4,430
One- to four-family first mortgage \| Residential properties
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	1,008	2,304
ACL	112	411
Home equity loans and lines
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	91,279	92,574
ACL	1,140	1,335	986	801
Home equity loans and lines \| Residential properties
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	0	0
ACL	0	0
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	1,224,277	1,190,388
ACL	13,963	14,503	14,803	13,521
Commercial real estate \| Commercial properties
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	3,195	2,162
ACL	135	362
Construction and land
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	303,735	329,227
ACL	2,906	2,813	3,090	5,484
Construction and land \| Commercial and residential properties
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	0	520
ACL	0	0
Multi-family residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	194,134	177,825
ACL	1,552	1,499	1,157	1,090
Multi-family residential \| Residential properties
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	0	603
ACL	0	136
Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	462,665	430,517
ACL	10,014	7,138	6,824	6,861
Commercial and industrial \| Accounts receivable, Inventory and Equipment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	4,723	617
ACL	2,768	356
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	29,074	30,046
ACL	811	792	$ 748	$ 729
Consumer \| Collateral Pledged
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	0	0
ACL	$ 0	$ 0