Note 16 - Business Segments - Profit and Assets for the Reportable Segments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Interest income – external customers	$ 8,057	$ 8,094	$ 15,622	$ 15,983
Non-interest income – external customers	2,516	4,742	4,891	7,997
Intersegment interest income	0	0	0	0
Intersegment non-interest income	0	0	0	0
Interest expense	292	410	575	863
Provision for loan losses	66	(891)	362	(1,467)
Non-interest expense	6,983	6,980	14,235	13,459
Income tax expense	943	1,809	1,565	3,179
Net income	2,289	4,528	3,776	7,946
Total assets	1,082,009	981,026	1,082,009	981,026	$ 1,069,538
Consolidation, Eliminations [Member]
Interest income – external customers	0	0	0	0
Non-interest income – external customers	0	0	0	0
Intersegment interest income	(2,491)	(4,746)	(17)	(8,398)
Intersegment non-interest income	(8)	(6)	(4,188)	(14)
Interest expense	(8)	(6)	(17)	(14)
Provision for loan losses	0	0	0	0
Non-interest expense	(58)	(59)	(117)	(117)
Income tax expense	0	0	0	0
Net income	(2,433)	(4,687)	(4,071)	(8,281)
Total assets	(95,199)	(107,418)	(95,199)	(107,418)
Home Federal Savings Bank [Member] | Operating Segments [Member]
Interest income – external customers	8,057	8,094	15,622	15,983
Non-interest income – external customers	2,516	4,742	4,891	7,996
Intersegment interest income	58	59	0	117
Intersegment non-interest income	0	0	117	0
Interest expense	300	416	592	877
Provision for loan losses	66	(891)	362	(1,467)
Non-interest expense	6,841	6,831	13,947	13,140
Income tax expense	991	1,852	1,658	3,265
Net income	2,433	4,687	4,071	8,281
Total assets	1,081,228	981,023	1,081,228	981,023
Other Segments [Member] | Operating Segments [Member]
Interest income – external customers	0	0	0	0
Non-interest income – external customers	0	0	0	1
Intersegment interest income	2,433	4,687	17	8,281
Intersegment non-interest income	8	6	4,071	14
Interest expense	0	0	0	0
Provision for loan losses	0	0	0	0
Non-interest expense	200	208	405	436
Income tax expense	(48)	(43)	(93)	(86)
Net income	2,289	4,528	3,776	7,946
Total assets	$ 95,980	$ 107,421	$ 95,980	$ 107,421