Note 3 - Loans and Allowance for Credit Losses - Allowance for Loan Losses by Portfolio Segment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2023	Jun. 30, 2023
Balance	$ 7,782	$ 7,546	$ 7,724	$ 7,160	$ 7,675
Provision for expected credit losses	325	225	365	635
Charge-offs	(137)	(119)	(243)	(197)
Recoveries	17	23	89	77
Balance	7,987	7,675	7,987	7,675	7,987
Individually evaluated for impairment						$ 0
Total ending allowance balance	7,987	7,675	7,987	7,675	7,987	7,724
Loans individually evaluated for impairment						405
Total ending loans balance	735,227		735,227		735,227	711,960
Financial Asset Acquired [Member]
Acquired loans collectively evaluated for impairment						114
Loans collectively evaluated for impairment						31,843
Financial Asset Originated [Member]
Acquired loans collectively evaluated for impairment						7,610
Loans collectively evaluated for impairment						679,712
Cumulative Effect, Period of Adoption, Adjustment [Member]
Balance			52
Total ending allowance balance						52
Commercial & Industrial [Member]
Balance	974		1,308
Provision for expected credit losses	(19)		102
Charge-offs	0		0
Recoveries	0		0
Balance	955		955		955
Total ending allowance balance	955		955		955	1,308
Commercial & Industrial [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Balance			(455)
Total ending allowance balance						(455)
Commercial Real Estate Portfolio Segment [Member]
Balance	3,951	4,072	3,943	3,927	4,084
Provision for expected credit losses	180	11	241	156
Charge-offs	0	0	0	0
Recoveries	0	1	0	1
Balance	4,131	4,084	4,131	4,084	4,131
Individually evaluated for impairment						0
Total ending allowance balance	4,131	4,084	4,131	4,084	4,131	3,943
Loans individually evaluated for impairment						88
Total ending loans balance						342,701
Commercial Real Estate Portfolio Segment [Member] | Financial Asset Acquired [Member]
Acquired loans collectively evaluated for impairment						40
Loans collectively evaluated for impairment						6,953
Commercial Real Estate Portfolio Segment [Member] | Financial Asset Originated [Member]
Acquired loans collectively evaluated for impairment						3,903
Loans collectively evaluated for impairment						335,660
Commercial Real Estate Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Balance			(53)
Total ending allowance balance						(53)
Farmland [Member]
Balance	91		0
Provision for expected credit losses	(2)		(4)
Charge-offs	0		0
Recoveries	0		0
Balance	89		89		89
Total ending allowance balance	89		89		89	0
Total ending loans balance	40,564		40,564		40,564
Farmland [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Balance			93
Total ending allowance balance						93
Land Development [Member]
Balance	266		0
Provision for expected credit losses	(20)		(152)
Charge-offs	0		0
Recoveries	0		0
Balance	246		246		246
Total ending allowance balance	246		246		246	0
Total ending loans balance	11,515		11,515		11,515
Land Development [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Balance			398
Total ending allowance balance						398
Residential Portfolio Segment [Member]
Balance	1,638	1,676	1,571	1,645	1,677
Provision for expected credit losses	56	1	(43)	36
Charge-offs	0	0	0	(6)	0
Recoveries	2	0	2	2
Balance	1,696	1,677	1,696	1,677	1,696
Individually evaluated for impairment						0
Total ending allowance balance	1,696	1,677	1,696	1,677	1,696	1,571
Loans individually evaluated for impairment						3
Total ending loans balance	193,196		193,196		193,196	190,839
Residential Portfolio Segment [Member] | Financial Asset Acquired [Member]
Acquired loans collectively evaluated for impairment						74
Loans collectively evaluated for impairment						23,038
Residential Portfolio Segment [Member] | Financial Asset Originated [Member]
Acquired loans collectively evaluated for impairment						1,497
Loans collectively evaluated for impairment						167,798
Residential Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Balance			166
Total ending allowance balance						166
Consumer Portfolio Segment [Member]
Balance	862	777	902	628	908
Provision for expected credit losses	130	228	221	397
Charge-offs	(137)	(119)	(243)	(191)	(243)
Recoveries	15	22	87	74
Balance	870	908	870	908	870
Individually evaluated for impairment						0
Total ending allowance balance	870	908	870	908	870	902
Loans individually evaluated for impairment						0
Total ending loans balance	71,995		71,995		71,995	65,594
Consumer Portfolio Segment [Member] | Financial Asset Acquired [Member]
Acquired loans collectively evaluated for impairment						0
Loans collectively evaluated for impairment						1,230
Consumer Portfolio Segment [Member] | Financial Asset Originated [Member]
Acquired loans collectively evaluated for impairment						902
Loans collectively evaluated for impairment						64,364
Consumer Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Balance			(97)
Total ending allowance balance						(97)
Commercial Portfolio Segment [Member]
Balance		1,021	1,308	960	1,006
Provision for expected credit losses		(15)		46
Charge-offs	0	0		0
Recoveries		0		0
Balance		1,006		1,006
Individually evaluated for impairment						0
Total ending allowance balance		$ 1,006		$ 1,006		1,308
Loans individually evaluated for impairment						314
Total ending loans balance	$ 112,073		$ 112,073		$ 112,073	112,826
Commercial Portfolio Segment [Member] | Financial Asset Acquired [Member]
Acquired loans collectively evaluated for impairment						0
Loans collectively evaluated for impairment						622
Commercial Portfolio Segment [Member] | Financial Asset Originated [Member]
Acquired loans collectively evaluated for impairment						1,308
Loans collectively evaluated for impairment						$ 111,890