Loans Receivable and Allowance for Credit Losses - Activity in Allowance for Loan Losses by Segment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Activity in allowance for loan losses
Balance, beginning of period	$ 5,142	$ 5,127	$ 5,121	$ 2,032
(Reversal of provision) provision for credit losses	(26)	212	(7)	112
Allowance for loan losses on loans receivable after (reversal of provision) provision for loan losses	5,116	5,339	5,114	5,353
Charge-offs	(17)	(82)	(25)	(97)
Recoveries	19	5	29	6
Net recoveries (charge-offs)	2	(77)	4	(91)
Balance, end of period	5,118	5,262	5,118	5,262
Adoption of ASU No. 2016-13 | Accounting Standards Update 2016-13 [Member]
Activity in allowance for loan losses
Balance, end of period		3,209		3,209
Real Estate
Activity in allowance for loan losses
Balance, beginning of period	4,483	4,629	4,502	1,263
(Reversal of provision) provision for credit losses	(63)	172	(89)	145
Allowance for loan losses on loans receivable after (reversal of provision) provision for loan losses	4,420	4,801	4,413	4,801
Charge-offs	(3)	(67)	(5)	(67)
Recoveries	13		22
Net recoveries (charge-offs)	10	(67)	17	(67)
Balance, end of period	4,430	4,734	4,430	4,734
Real Estate | Adoption of ASU No. 2016-13 | Accounting Standards Update 2016-13 [Member]
Activity in allowance for loan losses
Balance, end of period		3,393		3,393
Commercial
Activity in allowance for loan losses
Balance, beginning of period	526	417	514	434
(Reversal of provision) provision for credit losses	3	19	15	(69)
Allowance for loan losses on loans receivable after (reversal of provision) provision for loan losses	529	436	529	436
Charge-offs		(15)		(15)
Recoveries		5		5
Net recoveries (charge-offs)		(10)		(10)
Balance, end of period	529	426	529	426
Commercial | Adoption of ASU No. 2016-13 | Accounting Standards Update 2016-13 [Member]
Activity in allowance for loan losses
Balance, end of period		71		71
Consumer
Activity in allowance for loan losses
Balance, beginning of period	133	81	105	76
(Reversal of provision) provision for credit losses	34	21	67	36
Allowance for loan losses on loans receivable after (reversal of provision) provision for loan losses	167	102	172	116
Charge-offs	(14)		(20)	(15)
Recoveries	6		7	1
Net recoveries (charge-offs)	(8)		(13)	(14)
Balance, end of period	$ 159	102	$ 159	102
Consumer | Adoption of ASU No. 2016-13 | Accounting Standards Update 2016-13 [Member]
Activity in allowance for loan losses
Balance, end of period		4		4
Unallocated
Activity in allowance for loan losses
Balance, beginning of period				259
Unallocated | Adoption of ASU No. 2016-13 | Accounting Standards Update 2016-13 [Member]
Activity in allowance for loan losses
Balance, end of period		$ (259)		$ (259)