Note 16 - Business Segments - Profit and Assets for the Reportable Segments (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Home Federal Savings Bank [Member] | Operating Segments [Member]
Interest income - external customers	$ 6,954,000	$ 5,390,000	$ 20,638,000	$ 15,344,000
Non-interest income - external customers	2,147,000	2,231,000	6,004,000	5,692,000
Intersegment non-interest income	53,000	5,832,000	158,000	153,000
Interest expense	255,000	231,000	728,000	707,000
Other non-interest expense	6,049,000		17,510,000	16,887,000
Income tax expense	1,052,000	657,000	3,471,000	1,516,000
Net income	1,718,000	1,007,000	5,362,000	2,318,000
Total assets	684,635,000	617,870,000	684,635,000	617,870,000
Intersegment interest income		51,000		0
Interest income - external customers	6,954,000	5,390,000	20,638,000	15,344,000
Non-interest income - external customers	2,147,000	2,231,000	6,004,000	5,692,000
Other Segments [Member] | Operating Segments [Member]
Interest income - external customers	0	0	0	0
Non-interest income - external customers	0	0	0	0
Intersegment non-interest income	1,718,000	188,000	5,362,000	2,318,000
Interest expense	149,000	166,000	445,000	408,000
Other non-interest expense	205,000		573,000	466,000
Income tax expense	(50,000)	(166,000)	(322,000)	(421,000)
Net income	1,414,000	820,000	4,666,000	1,866,000
Total assets	83,570,000	78,354,000	83,570,000	78,354,000
Intersegment interest income		1,007,000		1,000
Interest income - external customers	0	0	0	0
Non-interest income - external customers	0	0	0	0
Consolidation, Eliminations [Member]
Interest income - external customers	0	0	0	0
Non-interest income - external customers	0	0	0	0
Intersegment non-interest income	(1,771,000)	(51,000)	(5,520,000)	(2,471,000)
Interest expense	0	0	0	(1,000)
Other non-interest expense	(53,000)		(158,000)	(153,000)
Income tax expense	0	0	0	0
Net income	(1,718,000)	(1,007,000)	(5,362,000)	(2,318,000)
Total assets	(82,538,000)	(77,307,000)	(82,538,000)	(77,307,000)
Intersegment interest income		(1,058,000)		(1,000)
Interest income - external customers	0	0	0	0
Non-interest income - external customers	0	0	0	0
Interest income - external customers	6,954,000	5,390,000	20,638,000	15,344,000
Non-interest income - external customers	2,147,000	2,231,000	6,004,000	5,692,000
Intersegment non-interest income	0	5,969,000	0	0
Interest expense	404,000	397,000	1,173,000	1,114,000
Other non-interest expense	6,201,000	5,969,000	17,925,000	17,200,000
Income tax expense	1,002,000	491,000	3,149,000	1,095,000
Net income	1,414,000	820,000	4,666,000	1,866,000
Total assets	685,667,000	618,917,000	685,667,000	618,917,000
Intersegment interest income		0		0
Interest income - external customers	6,954,000	5,390,000	20,638,000	15,344,000
Non-interest income - external customers	$ 2,147,000	$ 2,231,000	$ 6,004,000	$ 5,692,000