Note 3 - Loans (Details Textual) $ in Thousands	3 Months Ended	9 Months Ended
Mar. 31, 2019 USD ($)	Mar. 31, 2018 USD ($)	Mar. 31, 2019 USD ($)	Mar. 31, 2018 USD ($)	Jun. 30, 2018 USD ($)
Interest Receivable	$ 872		$ 872		$ 732
Financing Receivable, Nonaccrual	817		817		1,090
Financing Receivable, Troubled Debt Restructuring	1,314		1,314		1,269
Financing Receivable, Troubled Debt Restructuring, Commitment to Lend	73		73		174
Troubled Debt Restructuring, Debtor, Subsequent Periods, Contingent Payments, Amount, Total	$ 7		7		29
Financing Receivables, Impaired, Troubled Debt Restructuring, Write-down		$ 0	$ 80	$ 0
Financing Receivable, Modifications, Number of Contracts		0	1	0
Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts	0	0	0	0
Threshold Amount of Loans Outstanding to Perform Credit Analysis	$ 100		$ 100
Non-accrual Loans [Member]
Financing Receivable, Nonaccrual					761
Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, Nonaccrual	18		18		249
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable, Nonaccrual	80		80		$ 80
Non-accrual Loans [Member]
Financing Receivable, Nonaccrual	$ 719		$ 719

The threshold amount of loans outstanding balance that will trigger the credit analysis.

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Number of financing receivables that have been modified by troubled debt restructurings.

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Amount of financing receivable modified as troubled debt restructuring.

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Number of financing receivable contracts modified as troubled debt restructuring within previous 12 months, with subsequent payment default.

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Amount of financing receivable on nonaccrual status.

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Reflects the amount of the write-down related to a troubled debt restructuring.

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Carrying amount as of the balance sheet date of interest earned but not received. Also called accrued interest or accrued interest receivable.

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Amount of unfunded portion of contractual agreement to lend funds to borrower for financing receivable modified as troubled debt restructuring.

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Amount of restructured debt contingently payable based on the occurrence of future events or circumstances.

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