Note 9 - Loans and Related Allowance for Loan Losses - Schedule of Nonaccrual Loans (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Average nonaccrual loans	$ 0	$ 0	$ 0	$ 0
Income that would have been recognized	0	0	0	0
Interest income recognized	0	0	0	0
Interest income foregone	0	0	0	0
First Mortgage Loans One to Four Family Dwellings [Member]
Average nonaccrual loans	0	0	0	0
First Mortgage Loans Construction [Member]
Average nonaccrual loans	0	0	0	0
First Mortgage Loans Land Acquisition and Development [Member]
Average nonaccrual loans	0	0	0	0
Commercial Real Estate [Member]
Average nonaccrual loans	0	0	0	0
Consumer Loans, Home Equity Lines of Credit [Member]
Average nonaccrual loans	$ 0	$ 0	$ 0	$ 0

The amount of interest income on impaired and nonperforming loans that is due to the change in present value attributable to the passage of time.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 19
-URI http://asc.fasb.org/extlink&oid=123577603&loc=d3e5278-111524

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- Definition

Reflects the amount of additional interest income that would have been recorded if impaired or nonperforming loans were instead current, in compliance with their original terms, and outstanding throughout the reporting period or since origination (if held for part of the period).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 40
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=121585226&loc=d3e18794-111554

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- Definition

The gross interest income that would have been recorded in the period on troubled debt restructurings, if the loans had been current in accordance with their original terms and had been outstanding throughout the period or since origination, if held for part of the period.

+ References

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- Definition

Average nonaccrual loans.

+ References

No definition available.

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