Note 3 - Loans - Allowance for Loan Losses by Portfolio Segment (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2018	Jun. 30, 2018
Beginning balance	$ 3,538	$ 3,194	$ 3,422	$ 3,086
Provision for loan losses	(775)	60	(660)	150
Loans charged-off	(69)	(38)	(76)	(41)
Recoveries	875	9	883	30
Total ending allowance balance	3,569	3,225	3,569	3,225
Individually evaluated for impairment					$ 7	$ 29
Collectively evaluated for impairment					3,562	3,393
Total ending allowance balance	3,569	3,194	3,569	3,225	3,569	3,422
Loans individually evaluated for impairment					1,870	2,060
Loans collectively evaluated for impairment					332,476	317,181
Total ending loans balance					334,346	319,241
Commercial Portfolio Segment [Member]
Beginning balance	602	572	586	518
Provision for loan losses	20	(17)	36	35
Loans charged-off
Recoveries				2
Total ending allowance balance	622	555	622	555
Individually evaluated for impairment
Collectively evaluated for impairment					622	586
Total ending allowance balance	602	572	622	555	622	586
Loans individually evaluated for impairment					114	100
Loans collectively evaluated for impairment					64,120	60,979
Total ending loans balance					64,234	61,079
Commercial Real Estate Portfolio Segment [Member]
Beginning balance	2,378	2,081	2,277	2,038
Provision for loan losses	(793)	57	(693)	82
Loans charged-off	(55)		(55)
Recoveries	867	6	868	24
Total ending allowance balance	2,397	2,144	2,397	2,144
Individually evaluated for impairment					7	29
Collectively evaluated for impairment					2,390	2,248
Total ending allowance balance	2,378	2,081	2,397	2,144	2,397	2,277
Loans individually evaluated for impairment					1,379	1,562
Loans collectively evaluated for impairment					194,547	187,191
Total ending loans balance					195,926	188,753
Residential Portfolio Segment [Member]
Beginning balance	507	473	499	473
Provision for loan losses	(12)	20	(7)	20
Loans charged-off		(33)		(33)
Recoveries	1	1	4	1
Total ending allowance balance	496	461	496	461
Individually evaluated for impairment
Collectively evaluated for impairment					496	499
Total ending allowance balance	507	473	496	461	496	499
Loans individually evaluated for impairment					377	398
Loans collectively evaluated for impairment					68,785	64,135
Total ending loans balance					69,162	64,533
Consumer Portfolio Segment [Member]
Beginning balance	51	68	60	57
Provision for loan losses	10		4	13
Loans charged-off	(14)	(5)	(21)	(8)
Recoveries	7	2	11	3
Total ending allowance balance	54	65	54	65
Individually evaluated for impairment
Collectively evaluated for impairment					54	60
Total ending allowance balance	$ 51	$ 68	$ 54	$ 65	54	60
Loans individually evaluated for impairment
Loans collectively evaluated for impairment					5,024	4,876
Total ending loans balance					$ 5,024	$ 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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The balance of financing receivables that were individually 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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