Note 9 - Loans and Related Allowance for Loan Losses - Schedule of Primary Segments of Allowance for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		9 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021
Balance	$ 529	$ 611	$ 565	$ 618
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
(CREDIT) PROVISION FOR LOAN LOSSES	(16)	(8)	(52)	(15)	$ (52)	$ (15)
Individually evaluated for impairment	0	0	0	0	0	0
Collectively evaluated for impairment	513	603	513	603	513	603
Balance	513	603	513	603	513	603
First Mortgage Loans One to Four Family Dwellings [Member]
Balance	342	446	389	449
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
(CREDIT) PROVISION FOR LOAN LOSSES	(18)	(29)	(65)	(32)
Individually evaluated for impairment	0	0	0	0	0	0
Collectively evaluated for impairment	324	417	324	417	324	417
Balance	324	417	324	417	324	417
First Mortgage Loans Construction [Member]
Balance	49	34	50	38
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
(CREDIT) PROVISION FOR LOAN LOSSES	15	22	14	18
Individually evaluated for impairment	0	0	0	0	0	0
Collectively evaluated for impairment	64	56	64	56	64	56
Balance	64	56	64	56	64	56
First Mortgage Loans Land Acquisition and Development [Member]
Balance	20	6	11	6
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
(CREDIT) PROVISION FOR LOAN LOSSES	(6)	5	3	5
Individually evaluated for impairment	0	0	0	0	0	0
Collectively evaluated for impairment	14	11	14	11	14	11
Balance	14	11	14	11	14	11
First Mortgage Loans Multifamily Dwellings [Member]
Balance	21	25	24	26
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
(CREDIT) PROVISION FOR LOAN LOSSES	(1)	0	(4)	(1)
Individually evaluated for impairment	0	0	0	0	0	0
Collectively evaluated for impairment	20	25	20	25	20	25
Balance	20	25	20	25	20	25
First Mortgage Loans Commercial [Member]
Balance	62	62	59	66
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
(CREDIT) PROVISION FOR LOAN LOSSES	(7)	(1)	(4)	(5)
Individually evaluated for impairment	0	0	0	0	0	0
Collectively evaluated for impairment	55	61	55	61	55	61
Balance	55	61	55	61	55	61
Consumer Portfolio Segment [Member]
Balance	35	36	32	32
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
(CREDIT) PROVISION FOR LOAN LOSSES	(1)	(3)	2	1
Individually evaluated for impairment	0	0	0	0	0	0
Collectively evaluated for impairment	34	33	34	33	34	33
Balance	34	33	34	33	34	33
Commercial Portfolio Segment [Member]
Balance	0	2	0	1
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
(CREDIT) PROVISION FOR LOAN LOSSES	2	(2)	2	(1)
Individually evaluated for impairment	0	0	0	0	0	0
Collectively evaluated for impairment	2	0	2	0	2	0
Balance	$ 2	$ 0	$ 2	$ 0	$ 2	$ 0