Note 5 - Loans Modified and Classified as TDR (Details) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2016 USD ($)	Jun. 30, 2015 USD ($)
One-To-Four Family - Residential Portfolio Segment [Member] | Interest Rate Below Market Reduction [Member]
Financing Receivable, Modifications, Number of Contracts		2
One-to-four family - residential		$ 263
Small Business Administration Portfolio Segment [Member] | Interest Rate Below Market Reduction [Member]
Financing Receivable, Modifications, Number of Contracts			1
One-to-four family - residential			$ 41
Commercial Business and Other Portfolio Segment [Member] | Interest Rate Below Market Reduction [Member]
Financing Receivable, Modifications, Number of Contracts		2
One-to-four family - residential		$ 739
Financing Receivable, Modifications, Number of Contracts	0	4	1
One-to-four family - residential		$ 1,002	$ 41