Note 5 - Loans (Details) - Non-Performing Loans (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Loans ninety days or more past due and still accruing:
Loans ninety days or more past due and still accruing	$ 5,372	$ 606
Non-accrual loans	43,181	47,977
Total non-accrual loans and loans ninety days or more past due and still accruing	48,553	48,583
Multi-Family Residential [Member] | Mortgage Loans [Member]
Loans ninety days or more past due and still accruing:
Non-accrual loans	12,062	13,297
Multi-Family Residential [Member]
Loans ninety days or more past due and still accruing:
Loans ninety days or more past due and still accruing	188	52
Commercial Real Estate Loans [Member] | Mortgage Loans [Member]
Loans ninety days or more past due and still accruing:
Non-accrual loans	8,769	9,962
Commercial Real Estate Loans [Member]
Loans ninety days or more past due and still accruing:
Loans ninety days or more past due and still accruing	793
One-To-Four Family - Mixed-Use Property [Member] | Mortgage Loans [Member]
Loans ninety days or more past due and still accruing:
Non-accrual loans	7,977	9,063
One-To-Four Family - Mixed-Use Property [Member]
Loans ninety days or more past due and still accruing:
Loans ninety days or more past due and still accruing	874
One-To-Four Family - Residential [Member] | Mortgage Loans [Member]
Loans ninety days or more past due and still accruing:
Non-accrual loans	12,208	13,250
One-To-Four Family - Residential [Member]
Loans ninety days or more past due and still accruing:
Loans ninety days or more past due and still accruing	15	15
Construction [Member]
Loans ninety days or more past due and still accruing:
Loans ninety days or more past due and still accruing	1,012
Commercial Business And Other [Member]
Loans ninety days or more past due and still accruing:
Loans ninety days or more past due and still accruing	2,490	539
Non-accrual loans	2,165	2,348
Co-Operative Apartments [Member] | Mortgage Loans [Member]
Loans ninety days or more past due and still accruing:
Non-accrual loans		57
Mortgage Loans [Member]
Loans ninety days or more past due and still accruing:
Non-accrual loans	41,016	45,629
Non-Mortgage Loans [Member]
Loans ninety days or more past due and still accruing:
Non-accrual loans	$ 2,165	$ 2,348