Note 4 - Loans - Major Classifications (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Jun. 30, 2020	Sep. 30, 2019	Jun. 30, 2019
Loans and Leases Receivable, Gross, Total	$ 563,103	$ 544,473
Net Deferred loan fees and costs	(965)	(1,612)
Allowance for loan losses	(5,767)	(5,678)	$ (3,909)	$ (3,788)
Net loans	556,371	537,183
Commercial Portfolio Segment [Member]
Loans and Leases Receivable, Gross, Total	176,838	158,667
Allowance for loan losses	(940)	(947)	(649)	(660)
Commercial Real Estate Portfolio Segment [Member]
Allowance for loan losses	(3,694)	(3,623)	(2,645)	(2,575)
Commercial Real Estate Portfolio Segment [Member] \| Construction Loans [Member]
Loans and Leases Receivable, Gross, Total	8,809	16,235
Commercial Real Estate Portfolio Segment [Member] \| Other Commercial Real Estate Loans [Member]
Loans and Leases Receivable, Gross, Total	239,613	229,029
Residential Portfolio Segment [Member]
Allowance for loan losses	(997)	(989)	(550)	(494)
Residential Portfolio Segment [Member] \| Construction Loans [Member]
Loans and Leases Receivable, Gross, Total	5,860	9,344
Residential Portfolio Segment [Member] \| Residential Real Estate Owner Occupied Loans [Member]
Loans and Leases Receivable, Gross, Total	90,311	90,494
Residential Portfolio Segment [Member] \| Residential Real Estate Non-owner Occupied Loans [Member]
Loans and Leases Receivable, Gross, Total	19,907	19,370
Consumer Portfolio Segment [Member]
Loans and Leases Receivable, Gross, Total	21,765	21,334
Allowance for loan losses	$ (136)	$ (119)	$ (65)	$ (59)

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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