Note 4 - Loans - Allowance for Loan Losses by Portfolio Segment (Details) - USD ($) $ in Thousands	12 Months Ended
Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Beginning balance	$ 3,422	$ 3,086
Provision for loan losses	(440)	310
Loans charged-off	(116)	(61)
Recoveries	922	87
Total ending allowance balance	3,788	3,422
Individually evaluated for impairment			$ 9	$ 29
Collectively evaluated for impairment			3,779	3,393
Total ending allowance balance	3,788	3,422	3,788	3,422
Loans individually evaluated for impairment			1,189	2,060
Loans collectively evaluated for impairment			368,877	317,181
Total ending loans balance			370,066	319,241
Commercial Portfolio Segment [Member]
Beginning balance	586	518
Provision for loan losses	74	51
Loans charged-off
Recoveries		17
Total ending allowance balance	660	586
Individually evaluated for impairment			2
Collectively evaluated for impairment			658	586
Total ending allowance balance	586	586	660	586
Loans individually evaluated for impairment			174	100
Loans collectively evaluated for impairment			80,413	60,979
Total ending loans balance			80,587	61,079
Commercial Real Estate Portfolio Segment [Member]
Beginning balance	2,277	2,038
Provision for loan losses	(498)	202
Loans charged-off	(80)	(4)
Recoveries	876	41
Total ending allowance balance	2,575	2,277
Individually evaluated for impairment			7	29
Collectively evaluated for impairment			2,568	2,248
Total ending allowance balance	2,277	2,277	2,575	2,277
Loans individually evaluated for impairment			658	1,562
Loans collectively evaluated for impairment			210,709	187,191
Total ending loans balance			211,367	188,753
Residential Portfolio Segment [Member]
Beginning balance	499	473
Provision for loan losses	(28)	45
Loans charged-off		(33)
Recoveries	23	14
Total ending allowance balance	494	499
Individually evaluated for impairment
Collectively evaluated for impairment			494	499
Total ending allowance balance	499	499	494	499
Loans individually evaluated for impairment			357	398
Loans collectively evaluated for impairment			72,591	64,135
Total ending loans balance			72,948	64,533
Consumer Portfolio Segment [Member]
Beginning balance	60	57
Provision for loan losses	12	12
Loans charged-off	(36)	(24)
Recoveries	23	15
Total ending allowance balance	59	60
Individually evaluated for impairment
Collectively evaluated for impairment			59	60
Total ending allowance balance	$ 60	$ 60	59	60
Loans individually evaluated for impairment
Loans collectively evaluated for impairment			5,164	4,876
Total ending loans balance			$ 5,164	$ 4,876

Amount of recovery of loans and lease receivables which had previously been fully or partially written-off as bad debts.

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Amount of loans and leases that have been written off from both loan receivables and allowance reserve for credit loss.

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The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment.

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Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment.

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The balance of financing receivables that were collectively evaluated for impairment.

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Amount of financing receivable not past due.

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Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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Amount of expense related to estimated loss from loan and lease transactions.

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