Note 4 - Loans - Allowance for Loan Losses by Portfolio Segment (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021	Jun. 30, 2021
Beginning balance	$ 6,932	$ 5,912	$ 6,471	$ 5,678
Provision for loan losses	85	185	545	445
Loans charged-off	(31)	(43)	(118)	(121)
Recoveries	11	22	99	74
Total ending allowance balance	6,997	6,076	6,997	6,076
Individually evaluated for impairment	1		1		$ 4
Total ending allowance balance	6,997	6,076	6,997	6,076	6,471
Loans individually evaluated for impairment	705		705		1,954
Total ending loans balance	604,836		604,836		567,611
Financial Asset Acquired [Member]
Collectively evaluated for impairment	151		151		160
Loans collectively evaluated for impairment	43,250		43,250		35,227
Financial Asset Originated [Member]
Collectively evaluated for impairment	6,845		6,845		6,307
Loans collectively evaluated for impairment	560,881		560,881		530,430
Commercial Portfolio Segment [Member]
Beginning balance	976	858	904	947
Provision for loan losses	48	79	99	12
Loans charged-off	0	0	0	(22)
Recoveries	2	0	23	0
Total ending allowance balance	1,026	937	1,026	937
Individually evaluated for impairment	1		1		1
Total ending allowance balance	1,026	937	1,026	937	904
Loans individually evaluated for impairment	405		405		437
Total ending loans balance	91,481		91,481		110,287
Commercial Portfolio Segment [Member] \| Financial Asset Acquired [Member]
Collectively evaluated for impairment	1		1		0
Loans collectively evaluated for impairment	434		434		834
Commercial Portfolio Segment [Member] \| Financial Asset Originated [Member]
Collectively evaluated for impairment	1,024		1,024		903
Loans collectively evaluated for impairment	90,642		90,642		109,016
Commercial Real Estate Portfolio Segment [Member]
Beginning balance	4,049	3,817	3,949	3,623
Provision for loan losses	(58)	(109)	40	83
Loans charged-off	0	0	0	0
Recoveries	0	1	2	3
Total ending allowance balance	3,991	3,709	3,991	3,709
Individually evaluated for impairment	0		0		0
Total ending allowance balance	3,991	3,709	3,991	3,709	3,949
Loans individually evaluated for impairment	250		250		921
Total ending loans balance	305,108		305,108		280,026
Commercial Real Estate Portfolio Segment [Member] \| Financial Asset Acquired [Member]
Collectively evaluated for impairment	63		63		83
Loans collectively evaluated for impairment	11,202		11,202		6,542
Commercial Real Estate Portfolio Segment [Member] \| Financial Asset Originated [Member]
Collectively evaluated for impairment	3,928		3,928		3,866
Loans collectively evaluated for impairment	293,656		293,656		272,563
Residential Portfolio Segment [Member]
Beginning balance	1,490	1,028	1,307	989
Provision for loan losses	(16)	166	191	205
Loans charged-off	(1)	(4)	(41)	(4)
Recoveries	0	1	16	1
Total ending allowance balance	1,473	1,191	1,473	1,191
Individually evaluated for impairment	0		0		3
Total ending allowance balance	1,473	1,191	1,473	1,191	1,307
Loans individually evaluated for impairment	50		50		596
Total ending loans balance	167,490		167,490		147,648
Residential Portfolio Segment [Member] \| Financial Asset Acquired [Member]
Collectively evaluated for impairment	87		87		77
Loans collectively evaluated for impairment	27,828		27,828		21,363
Residential Portfolio Segment [Member] \| Financial Asset Originated [Member]
Collectively evaluated for impairment	1,386		1,386		1,227
Loans collectively evaluated for impairment	139,612		139,612		125,689
Consumer Portfolio Segment [Member]
Beginning balance	417	209	311	119
Provision for loan losses	111	49	215	145
Loans charged-off	(30)	(39)	(77)	(95)
Recoveries	9	20	58	70
Total ending allowance balance	507	239	507	239
Individually evaluated for impairment	0		0		0
Total ending allowance balance	507	$ 239	507	$ 239	311
Loans individually evaluated for impairment	0		0		0
Total ending loans balance	40,757		40,757		29,650
Consumer Portfolio Segment [Member] \| Financial Asset Acquired [Member]
Collectively evaluated for impairment	0		0		0
Loans collectively evaluated for impairment	3,786		3,786		6,488
Consumer Portfolio Segment [Member] \| Financial Asset Originated [Member]
Collectively evaluated for impairment	507		507		311
Loans collectively evaluated for impairment	$ 36,971		$ 36,971		$ 23,162

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 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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Amortized cost, before allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement and net investment in lease.

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

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