Regulatory Capital - Summary of Bank's Actual Capital Amounts and Ratios (Details) $ in Thousands	Sep. 30, 2023 USD ($)	Jun. 30, 2023 USD ($)
Banking and Thrift, Other Disclosure [Abstract]
Tier 1 capital (to average total assets), Actual Amount	$ 167,989	$ 127,099
Tier 1 capital (to average total assets), Actual Ratio	0.1532	0.1948
Minimum amount of Tier 1 Capital for adequacy purposes	$ 43,864	$ 26,104
Minimum amount of Tier 1 Capital for adequacy purposes, ratio	0.04	0.04
Tier 1 capital (to average total assets), To be Well-Capitalized under Prompt Corrective Action Provisions, Amount	$ 98,695	$ 58,735
Tier 1 capital (to average total assets), To be Well Capitalized under Prompt Corrective Action Provisions, Ratio	0.09	0.09

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Amount of Tier 1 leverage capital as defined by regulatory framework.

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Amount of minimum Tier 1 leverage capital required for capital adequacy as defined by regulatory framework.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 505
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (c)(1)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480696/942-505-50-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 505
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480696/942-505-50-1B

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