Note 3 - Loans - Allowance for Loan Losses by Portfolio Segment (Details) - USD ($) $ in Thousands	3 Months Ended
Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Jun. 30, 2018
Beginning balance	$ 3,422	$ 3,086
Provision for loan losses	115	90
Loans charged-off	(7)	(3)
Recoveries	8	21
Total ending allowance balance	3,538	3,194
Individually evaluated for impairment			$ 29	$ 29
Collectively evaluated for impairment			3,509	3,393
Total ending allowance balance	3,538	3,086	3,538	3,422
Loans individually evaluated for impairment			2,081	2,060
Loans collectively evaluated for impairment			327,460	317,181
Total ending loans balance			329,541	319,241
Commercial Portfolio Segment [Member]
Beginning balance	586	518
Provision for loan losses	16	52
Loans charged-off
Recoveries		2
Total ending allowance balance	602	572
Individually evaluated for impairment
Collectively evaluated for impairment			602	586
Total ending allowance balance	586	518	602	586
Loans individually evaluated for impairment			87	100
Loans collectively evaluated for impairment			62,238	60,979
Total ending loans balance			62,325	61,079
Commercial Real Estate Portfolio Segment [Member]
Beginning balance	2,277	2,038
Provision for loan losses	100	25
Loans charged-off
Recoveries	1	18
Total ending allowance balance	2,378	2,081
Individually evaluated for impairment			29	29
Collectively evaluated for impairment			2,349	2,248
Total ending allowance balance	2,277	2,038	2,378	2,277
Loans individually evaluated for impairment			1,606	1,562
Loans collectively evaluated for impairment			194,132	187,191
Total ending loans balance			195,738	188,753
Residential Portfolio Segment [Member]
Beginning balance	499	473
Provision for loan losses	5
Loans charged-off
Recoveries	3
Total ending allowance balance	507	473
Individually evaluated for impairment
Collectively evaluated for impairment			507	499
Total ending allowance balance	499	473	507	499
Loans individually evaluated for impairment			388	398
Loans collectively evaluated for impairment			66,229	64,135
Total ending loans balance			66,617	64,533
Consumer Portfolio Segment [Member]
Beginning balance	60	57
Provision for loan losses	(6)	13
Loans charged-off	(7)	(3)
Recoveries	4	1
Total ending allowance balance	51	68
Individually evaluated for impairment
Collectively evaluated for impairment			51	60
Total ending allowance balance	$ 60	$ 57	51	60
Loans individually evaluated for impairment
Loans collectively evaluated for impairment			4,861	4,876
Total ending loans balance			$ 4,861	$ 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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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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