Note 4 - Loans - Major Classifications (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Jun. 30, 2021	Sep. 30, 2020	Jun. 30, 2020
Loans and Leases Receivable, Gross, Total	$ 578,532	$ 568,680
Net deferred loan fees and costs	(1,371)	(2,253)
Allowance for loan losses	(6,677)	(6,471)	$ (5,767)	$ (5,678)
Net loans	570,484	559,956
Commercial Portfolio Segment [Member]
Loans and Leases Receivable, Gross, Total	95,568	112,337
Allowance for loan losses	(906)	(904)	(940)	(947)
Commercial Real Estate Portfolio Segment [Member]
Allowance for loan losses	(3,985)	(3,949)	(3,694)	(3,623)
Commercial Real Estate Portfolio Segment [Member] \| Construction Loans [Member]
Loans and Leases Receivable, Gross, Total	17,477	10,525
Commercial Real Estate Portfolio Segment [Member] \| Other Commercial Real Estate Loans [Member]
Loans and Leases Receivable, Gross, Total	269,627	269,679
Residential Portfolio Segment [Member]
Allowance for loan losses	(1,430)	(1,307)	(997)	(989)
Residential Portfolio Segment [Member] \| Construction Loans [Member]
Loans and Leases Receivable, Gross, Total	6,591	9,073
Residential Portfolio Segment [Member] \| Residential Real Estate Owner Occupied Loans [Member]
Loans and Leases Receivable, Gross, Total	137,037	118,269
Residential Portfolio Segment [Member] \| Residential Real Estate Non-owner Occupied Loans [Member]
Loans and Leases Receivable, Gross, Total	20,123	19,151
Consumer Portfolio Segment [Member]
Loans and Leases Receivable, Gross, Total	32,109	29,646
Allowance for loan losses	$ (356)	$ (311)	$ (136)	$ (119)

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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