Note 8 - Office Properties and Equipment (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Note 8 - Office Properties and Equipment (Details) [Line Items]
Depreciation	$ 3,293,000	$ 2,171,000
Operating Leases, Future Minimum Payments Due	6,047,000
Operating Leases, Rent Expense	721,000	$ 484,000
Lessor Leasing Arrangements, Operating Leases, Renewal Term		10 years
Rental Income, Nonoperating	435,000	$ 285,000
Renewal Period Costs [Member]
Note 8 - Office Properties and Equipment (Details) [Line Items]
Operating Leases, Future Minimum Payments Due	$ 4,000,000
Minimum [Member]
Note 8 - Office Properties and Equipment (Details) [Line Items]
Lessee Leasing Arrangements, Operating Leases, Renewal Term	1 year
Maximum [Member]
Note 8 - Office Properties and Equipment (Details) [Line Items]
Lessee Leasing Arrangements, Operating Leases, Renewal Term	25 years