Note 3 - Loans - Allowance for Loan Losses by Portfolio Segment (Details) - USD ($) $ in Thousands	12 Months Ended
Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Beginning balance	$ 3,086	$ 3,566
Provision for loan losses	310	596
Loans charged-off	(61)	(1,148)
Recoveries	87	72
Total ending allowance balance	3,422	3,086
Individually evaluated for impairment			$ 29	$ 44
Collectively evaluated for impairment			3,393	3,042
Total ending allowance balance	3,422	3,086	3,422	3,086
Loans individually evaluated for impairment			2,060	2,234
Loans collectively evaluated for impairment			317,181	271,214
Total ending loans balance			319,241	273,448
Commercial Portfolio Segment [Member]
Beginning balance	518	505
Provision for loan losses	51	18
Loans charged-off		(6)
Recoveries	17	1
Total ending allowance balance	586	518
Individually evaluated for impairment
Collectively evaluated for impairment			586	518
Total ending allowance balance	518	518	586	518
Loans individually evaluated for impairment			100	444
Loans collectively evaluated for impairment			60,979	45,993
Total ending loans balance			61,079	46,437
Commercial Real Estate Portfolio Segment [Member]
Beginning balance	2,038	2,518
Provision for loan losses	202	581
Loans charged-off	(4)	(1,061)
Recoveries	41
Total ending allowance balance	2,277	2,038
Individually evaluated for impairment			29	42
Collectively evaluated for impairment			2,248	1,996
Total ending allowance balance	2,038	2,038	2,277	2,038
Loans individually evaluated for impairment			1,562	1,587
Loans collectively evaluated for impairment			187,191	162,176
Total ending loans balance			188,753	163,763
Residential Portfolio Segment [Member]
Beginning balance	473	402
Provision for loan losses	45	77
Loans charged-off	(33)	(44)
Recoveries	14	38
Total ending allowance balance	499	473
Individually evaluated for impairment				2
Collectively evaluated for impairment			499	471
Total ending allowance balance	473	473	499	473
Loans individually evaluated for impairment			398	203
Loans collectively evaluated for impairment			64,135	57,901
Total ending loans balance			64,533	58,104
Consumer Portfolio Segment [Member]
Beginning balance	57	141
Provision for loan losses	12	(80)
Loans charged-off	(24)	(37)
Recoveries	15	33
Total ending allowance balance	60	57
Individually evaluated for impairment
Collectively evaluated for impairment			60	57
Total ending allowance balance	$ 57	$ 57	60	57
Loans individually evaluated for impairment
Loans collectively evaluated for impairment			4,876	5,144
Total ending loans balance			$ 4,876	$ 5,144

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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Financing receivables that are current.

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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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