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Loans and Allowance for Loan Losses - Credit Risk Profile of Association's Loan Portfolio Based on Rating Category and Payment Activity (Detail) - USD ($) $ in Thousands	Jun. 30, 2021	Jun. 30, 2020
Financing Receivable, Recorded Investment [Line Items]
Total loans	$ 520,526	$ 515,887
Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	512,746	510,504
Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	6,919	3,633
Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	861	1,506
Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans		244
One- to four-family [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	117,435	128,876
One- to four-family [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	116,980	127,279
One- to four-family [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans		775
One- to four-family [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	455	822
Multi-family [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	104,433	96,195
Multi-family [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	104,170	95,925
Multi-family [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	263	270
Home equity lines of credit [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	6,688	8,551
Home equity lines of credit [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	6,688	8,402
Home equity lines of credit [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans		134
Home equity lines of credit [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans		15
Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	25,345	22,042
Construction [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	25,345	22,042
Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	155,884	145,113
Commercial [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	154,833	143,727
Commercial [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	954	1,073
Commercial [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	97	313
Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	103,088	107,581
Commercial [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	97,078	105,605
Commercial [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	5,964	1,651
Commercial [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	46	81
Commercial [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans		244
Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	7,653	7,529
Consumer [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	7,652	7,524
Consumer [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	$ 1
Consumer [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans		$ 5

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- Definition

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+ References

No definition available.

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- Definition

Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=121593590&loc=d3e4428-111522

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