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Loans and Allowance for Loan Losses - Categories of Loans (Detail) - USD ($) $ in Thousands	Sep. 30, 2021	Jun. 30, 2021	Sep. 30, 2020	Jun. 30, 2020
Real estate loans
Total loans	$ 512,984	$ 520,526	$ 525,033
Unearned fees and discounts, net	231	556
Allowance for loan losses	6,470	6,599	6,506	$ 6,234
Loans, net	506,283	513,371
One- to four-family [Member]
Real estate loans
Total loans	117,854	117,435	125,574
Allowance for loan losses	974	967	1,033	1,044
Multi-family [Member]
Real estate loans
Total loans	97,211	104,433	106,886
Allowance for loan losses	1,562	1,674	1,741	1,514
Home equity lines of credit [Member]
Real estate loans
Total loans	6,274	6,688	8,147
Allowance for loan losses	63	67	82	87
Construction [Member]
Real estate loans
Total loans	31,209	25,345	10,050
Allowance for loan losses	321	258	85	240
Commercial [Member]
Real estate loans
Total loans	163,859	155,884	157,096
Allowance for loan losses	1,916	1,831	1,874	1,706
Commercial [Member]
Real estate loans
Total loans	88,962	103,088	109,182
Allowance for loan losses	1,571	1,740	1,624	1,583
Consumer [Member]
Real estate loans
Total loans	7,615	7,653	8,098
Allowance for loan losses	$ 63	$ 62	$ 67	$ 60

X

- 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 deferred interest and fee income, unamortized costs incurred to originate loans and leases, unamortized loan commitments and loan syndication fees, and premiums over or discounts from face amounts of acquired loans. Excludes amounts for loans and leases covered under loss sharing agreements.

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