Note 16 - Business Segments - Profit and Assets for the Reportable Segments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Income tax expense	$ 712	$ 974	$ 1,553	$ 2,147
Net income	1,024	1,478	2,237	3,252
Total assets	725,183	653,385	725,183	653,385	$ 682,023
Interest income - external customers	6,999	7,159	13,658	13,684
Non-interest income - external customers	1,906	2,102	3,786	3,857
Intersegment non-interest income	0	0	0	0
Interest expense	461	395	869	769
Other non-interest expense	6,439	6,033	12,786	11,724
Consolidation, Eliminations [Member]
Income tax expense	0	0	0	0
Net income	(1,221)	(1,675)	(2,636)	(3,644)
Total assets	(84,050)	(81,335)	(84,050)	(81,335)
Interest income - external customers	0	0	0	0
Non-interest income - external customers	0	0	0	0
Intersegment non-interest income	(1,273)	(1,727)	(2,741)	(3,749)
Interest expense	0	0	0	0
Other non-interest expense	(52)	(52)	(105)	(105)
Home Federal Savings Bank [Member] | Operating Segments [Member]
Income tax expense	806	1,110	1,745	2,419
Net income	1,221	1,675	2,636	3,644
Total assets	724,407	652,352	724,407	652,352
Interest income - external customers	6,999	7,159	13,658	13,684
Non-interest income - external customers	1,906	2,102	3,786	3,857
Intersegment non-interest income	52	52	105	105
Interest expense	345	247	640	473
Other non-interest expense	6,316	5,900	12,529	11,461
Other Segments [Member] | Operating Segments [Member]
Income tax expense	(94)	(136)	(192)	(272)
Net income	1,024	1,478	2,237	3,252
Total assets	84,826	82,368	84,826	82,368
Interest income - external customers	0	0	0	0
Non-interest income - external customers	0	0	0	0
Intersegment non-interest income	1,221	1,675	2,636	3,644
Interest expense	116	148	229	296
Other non-interest expense	$ 175	$ 185	$ 362	$ 368