Note 6 - Loans Held for Sale (Details) - Delinquent and Non-Performing Loans Sold During the Period $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2015 USD ($)	Jun. 30, 2014 USD ($)	Jun. 30, 2015 USD ($)	Jun. 30, 2014 USD ($)
Note 6 - Loans Held for Sale (Details) - Delinquent and Non-Performing Loans Sold During the Period [Line Items]
Loans sold	7	4	12	16
Proceeds	$ 3,506	$ 1,908	$ 5,028	$ 7,332
Net charge-offs	137	$ 76	137	$ 263
Net gain (loss)	$ 47		$ 49
Multi-Family Residential Portfolio Segment[Member]
Note 6 - Loans Held for Sale (Details) - Delinquent and Non-Performing Loans Sold During the Period [Line Items]
Loans sold	2	3	4	7
Proceeds	$ 1,045	$ 1,478	$ 1,881	$ 3,216
Net charge-offs	$ 137	$ 76	137	$ (70)
Net gain (loss)			$ (2)
Commercial Real Estate Portfolio Segment [Member]
Note 6 - Loans Held for Sale (Details) - Delinquent and Non-Performing Loans Sold During the Period [Line Items]
Loans sold	1	1	1	3
Proceeds	$ 1,311	$ 430	$ 1,311	$ 2,047
Net charge-offs				$ 295
One-To-Four Family - Mixed-Use Property Portfolio Segment[Member]
Note 6 - Loans Held for Sale (Details) - Delinquent and Non-Performing Loans Sold During the Period [Line Items]
Loans sold	4		7	6
Proceeds	$ 1,150		$ 1,836	$ 2,069
Net charge-offs				$ 38
Net gain (loss)	$ 47		$ 51