Loans Receivable: Schedule of Allowance for Loan and Lease Losses, Roll Forward (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	$ 15,657
Provision (recapture of provision)	(400)	$ 300
Ending balance	15,227	15,657
Loans receivable, allowance	15,227	15,657
PPP Loan
Allowance for Loan and Lease Losses [Roll Forward]
Long-term Debt, Gross	785	10,800
One-to-four family residential
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	3,214	3,181
Charge-offs	0	0
Recoveries	7	183
Provision (recapture of provision)	822	(150)
Ending balance	4,043	3,214
Loans receivable, allowance	4,043	3,214
Total Loans	475,836	385,116
One-to-four family residential \| General Reserve
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	3,194
Ending balance	4,030	3,194
Loans receivable, allowance	4,030	3,194
Total Loans	474,476	383,009
One-to-four family residential \| Specific Reserve
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	20
Ending balance	13	20
Loans receivable, allowance	13	20
Total Loans	1,360	2,107
Multifamily
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	1,279	1,366
Charge-offs	0	0
Recoveries	0	0
Provision (recapture of provision)	(69)	(87)
Ending balance	1,210	1,279
Loans receivable, allowance	1,210	1,279
Total Loans	126,895	130,146
Multifamily \| General Reserve
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	1,279
Ending balance	1,210	1,279
Loans receivable, allowance	1,210	1,279
Total Loans	125,263	130,146
Multifamily \| Specific Reserve
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	0
Ending balance	0	0
Loans receivable, allowance	0	0
Total Loans	1,632	0
Commercial Real Estate
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	6,615	6,127
Charge-offs	0	0
Recoveries	0	0
Provision (recapture of provision)	(1,218)	488
Ending balance	5,397	6,615
Loans receivable, allowance	5,397	6,615
Total Loans	407,882	419,417
Commercial Real Estate \| General Reserve
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	6,615
Ending balance	5,397	6,615
Loans receivable, allowance	5,397	6,615
Total Loans	362,340	385,387
Commercial Real Estate \| Specific Reserve
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	0
Ending balance	0	0
Loans receivable, allowance	0	0
Total Loans	45,542	34,030
Construction Land Development
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	2,064	2,189
Charge-offs	0	0
Recoveries	0	0
Provision (recapture of provision)	(347)	(125)
Ending balance	1,717	2,064
Loans receivable, allowance	1,717	2,064
Total Loans	78,120	93,455
Construction Land Development \| General Reserve
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	2,064
Ending balance	1,717	2,064
Loans receivable, allowance	1,717	2,064
Total Loans	78,120	93,455
Construction Land Development \| Specific Reserve
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	0
Ending balance	0	0
Loans receivable, allowance	0	0
Total Loans	0	0
Business
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	1,112	1,242
Charge-offs	0	0
Recoveries	0	0
Provision (recapture of provision)	(164)	(130)
Ending balance	948	1,112
Loans receivable, allowance	948	1,112
Total Loans	31,371	46,590
Business \| General Reserve
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	1,112
Ending balance	948	1,112
Loans receivable, allowance	948	1,112
Total Loans	31,371	46,590
Business \| Specific Reserve
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	0
Ending balance	0	0
Loans receivable, allowance	0	0
Total Loans	0	0
Consumer
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	1,373	1,069
Charge-offs	(37)	0
Recoveries	0	0
Provision (recapture of provision)	576	304
Ending balance	1,912	1,373
Loans receivable, allowance	1,912	1,373
Total Loans	62,055	44,812
Consumer \| General Reserve
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	1,373
Ending balance	1,912	1,373
Loans receivable, allowance	1,912	1,373
Total Loans	62,055	44,812
Consumer \| Specific Reserve
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	0
Ending balance	0	0
Loans receivable, allowance	0	0
Total Loans	0	0
Property total
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	15,657	15,174
Charge-offs	(37)	0
Recoveries	7	183
Provision (recapture of provision)	(400)	300
Ending balance	15,227	15,657
Loans receivable, allowance	15,227	15,657
Total Loans	1,182,159	1,119,536
Property total \| General Reserve
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	15,637
Ending balance	15,214	15,637
Loans receivable, allowance	15,214	15,637
Total Loans	1,133,625	1,083,399
Property total \| Specific Reserve
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	20
Ending balance	13	20
Loans receivable, allowance	13	20
Total Loans	$ 48,534	$ 36,137

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- Definition

Amount of recovery of loans and lease receivables which had previously been fully or partially written-off as bad debts.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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- Definition

Amount of loans and leases that have been written off from both loan receivables and allowance reserve for credit loss.

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- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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- Definition

Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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Amount of expense related to estimated loss from loan and lease transactions.

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