Note 16 - Business Segments - Profit and Assets for the Reportable Segments (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Interest income - external customers		$ 11,999	$ 9,913
Non-interest income - external customers		1,907	1,928
Intersegment interest income		0	0
Intersegment non-interest income		0	0
Interest expense		4,743	1,850
Provision for credit losses	[1]	(209)	(8)
Non-interest expense		7,551	7,693
Income tax expense		503	672
Net income		1,318	1,634
Total assets		1,151,215	1,071,582	$ 1,107,135
Consolidation, Eliminations [Member]
Interest income - external customers		0	0
Non-interest income - external customers		0	0
Intersegment interest income		(88)	(64)
Intersegment non-interest income		(1,503)	(1,806)
Interest expense		(88)	(64)
Provision for credit losses		0	0
Non-interest expense		(71)	(58)
Income tax expense		0	0
Net income		(1,432)	(1,748)
Total assets		(108,890)	(100,226)
Home Federal Savings Bank [Member] | Operating Segments [Member]
Interest income - external customers		11,999	9,913
Non-interest income - external customers		1,907	1,928
Intersegment interest income		0	0
Intersegment non-interest income		71	58
Interest expense		4,831	1,914
Provision for credit losses		(209)	(8)
Non-interest expense		7,389	7,542
Income tax expense		534	703
Net income		1,432	1,748
Total assets		1,151,160	1,071,577
Other Operating Segment [Member] | Operating Segments [Member]
Interest income - external customers		0	0
Non-interest income - external customers		0	0
Intersegment interest income		88	64
Intersegment non-interest income		1,432	1,748
Interest expense		0	0
Provision for credit losses		0	0
Non-interest expense		233	209
Income tax expense		(31)	(31)
Net income		1,318	1,634
Total assets		$ 108,945	$ 100,231

[1] The Company adopted Accounting Standard Update (ASU) 2016-13 as of January 1, 2023. The 2022 amount presented is calculated under the prior accounting standard.