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Investment Securities (Details) - Schedule of gross unrealized or unrecognized gains and losses - Agency mortgage-backed: residential [Member] - USD ($) $ in Thousands	Sep. 30, 2021	Jun. 30, 2021
Available-for-sale Securities
Available-for-sale Securities, Amortized cost	$ 31	$ 33
Available-for-sale Securities, Gross unrealized/ unrecognized gains
Available-for-sale Securities, Gross unrealized/ unrecognized losses
Available-for-sale Securities, Estimated fair value	31	33
Held-to-maturity Securities
Held-to-maturity Securities, Amortized cost	436	462
Held-to-maturity Securities, Gross unrealized/ unrecognized gains	18	16
Held-to-maturity Securities, Gross unrealized/ unrecognized losses	2	2
Held-to-maturity Securities, Estimated fair value	$ 452	$ 476

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Available-for-sale Securities, Amortized cost.

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Available-for-sale Securities, Estimated fair value

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Available-for-sale Securities, Gross unrealized/ unrecognized losses.

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Available-for-sale Securities, Gross unrealized/ unrecognized gains.

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- Definition

Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(6))
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 30
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=124258926&loc=SL82898722-210454

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 45
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=124260329&loc=d3e26610-111562

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-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
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Amount of accumulated unrecognized gain on investment in debt security measured at amortized cost (held-to-maturity).

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-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 5
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Amount of accumulated unrealized loss on investment in debt security measured at amortized cost (held-to-maturity).

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 5
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-URI http://asc.fasb.org/extlink&oid=123581744&loc=d3e27232-111563

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Amount, before other-than-temporary impairment (OTTI) accretion, of investment in debt securities measured at amortized cost (held-to-maturity).

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