Note 16 - Business Segments - Profit and Assets for the Reportable Segments (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Interest income – external customers	$ 8,631	$ 8,401	$ 24,253	$ 24,384
Non-interest income – external customers	2,054	3,051	6,945	11,048
Intersegment interest income	0	0	0	0
Intersegment non-interest income	0	0	0	0
Interest expense	340	360	915	1,223
Provision for loan losses	579	(886)	941	(2,353)
Non-interest expense	7,174	6,906	21,409	20,365
Income tax expense	761	1,453	2,326	4,632
Net income	1,831	3,619	5,607	11,565
Total assets	1,047,793	1,036,615	1,047,793	1,036,615	$ 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	(2,040)	(3,832)	(27)	(12,230)
Intersegment non-interest income	(10)	(8)	(6,228)	(22)
Interest expense	(10)	(8)	(27)	(22)
Provision for loan losses	0	0	0	0
Non-interest expense	(59)	(59)	(176)	(176)
Income tax expense	0	0	0	0
Net income	(1,981)	(3,773)	(6,052)	(12,054)
Total assets	(89,007)	(109,402)	(89,007)	(109,402)
Home Federal Savings Bank [Member] | Operating Segments [Member]
Interest income – external customers	8,631	8,401	24,253	24,384
Non-interest income – external customers	2,054	3,051	6,945	11,047
Intersegment interest income	59	59	0	176
Intersegment non-interest income	0	0	176	0
Interest expense	350	368	942	1,245
Provision for loan losses	579	(886)	941	(2,353)
Non-interest expense	7,025	6,766	20,972	19,906
Income tax expense	809	1,490	2,467	4,755
Net income	1,981	3,773	6,052	12,054
Total assets	1,046,983	1,035,945	1,046,983	1,035,945
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	1,981	3,773	27	12,054
Intersegment non-interest income	10	8	6,052	22
Interest expense	0	0	0	0
Provision for loan losses	0	0	0	0
Non-interest expense	208	199	613	635
Income tax expense	(48)	(37)	(141)	(123)
Net income	1,831	3,619	5,607	11,565
Total assets	$ 89,817	$ 110,072	$ 89,817	$ 110,072