Note 4 - Loans - Allowance for Loan Losses by Portfolio Segment (Details) - USD ($) $ in Thousands	12 Months Ended
Jun. 30, 2022	Jun. 30, 2021
Beginning balance	$ 6,471	$ 5,678
Provision for loan losses	735	850
Loans charged-off	(173)	(148)
Recoveries	127	91
Total ending allowance balance	7,160	6,471
Individually evaluated for impairment	0	4
Total ending allowance balance	7,160	6,471
Loans individually evaluated for impairment	473	1,954
Total ending loans balance	613,057	567,611
Financial Asset Acquired [Member]
Collectively evaluated for impairment	148	160
Loans collectively evaluated for impairment	41,542	35,227
Financial Asset Originated [Member]
Collectively evaluated for impairment	7,012	6,307
Loans collectively evaluated for impairment	571,042	530,430
Commercial Portfolio Segment [Member]
Beginning balance	904	947
Provision for loan losses	33	(21)
Loans charged-off	0	(22)
Recoveries	23	0
Total ending allowance balance	960	904
Individually evaluated for impairment	0	1
Total ending allowance balance	960	904
Loans individually evaluated for impairment	276	437
Total ending loans balance	87,251	110,287
Commercial Portfolio Segment [Member] \| Financial Asset Acquired [Member]
Collectively evaluated for impairment	1	0
Loans collectively evaluated for impairment	665	834
Commercial Portfolio Segment [Member] \| Financial Asset Originated [Member]
Collectively evaluated for impairment	959	903
Loans collectively evaluated for impairment	86,310	109,016
Commercial Real Estate Portfolio Segment [Member]
Beginning balance	3,949	3,623
Provision for loan losses	(24)	322
Loans charged-off	0	0
Recoveries	2	4
Total ending allowance balance	3,927	3,949
Individually evaluated for impairment	0	0
Total ending allowance balance	3,927	3,949
Loans individually evaluated for impairment	42	921
Total ending loans balance	306,913	280,026
Commercial Real Estate Portfolio Segment [Member] \| Financial Asset Acquired [Member]
Collectively evaluated for impairment	62	83
Loans collectively evaluated for impairment	10,095	6,542
Commercial Real Estate Portfolio Segment [Member] \| Financial Asset Originated [Member]
Collectively evaluated for impairment	3,865	3,866
Loans collectively evaluated for impairment	296,776	272,563
Residential Portfolio Segment [Member]
Beginning balance	1,307	989
Provision for loan losses	359	319
Loans charged-off	(41)	(4)
Recoveries	20	3
Total ending allowance balance	1,645	1,307
Individually evaluated for impairment	0	3
Total ending allowance balance	1,645	1,307
Loans individually evaluated for impairment	155	596
Total ending loans balance	173,944	147,648
Residential Portfolio Segment [Member] \| Financial Asset Acquired [Member]
Collectively evaluated for impairment	85	77
Loans collectively evaluated for impairment	27,731	21,363
Residential Portfolio Segment [Member] \| Financial Asset Originated [Member]
Collectively evaluated for impairment	1,560	1,227
Loans collectively evaluated for impairment	146,058	125,689
Consumer Portfolio Segment [Member]
Beginning balance	311	119
Provision for loan losses	367	230
Loans charged-off	(132)	(122)
Recoveries	82	84
Total ending allowance balance	628	311
Individually evaluated for impairment	0	0
Total ending allowance balance	628	311
Loans individually evaluated for impairment	0	0
Total ending loans balance	44,949	29,650
Consumer Portfolio Segment [Member] \| Financial Asset Acquired [Member]
Collectively evaluated for impairment	0	0
Loans collectively evaluated for impairment	3,051	6,488
Consumer Portfolio Segment [Member] \| Financial Asset Originated [Member]
Collectively evaluated for impairment	628	311
Loans collectively evaluated for impairment	$ 41,898	$ 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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