Note 3 - Loans (Details) - Impaired Loans (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
With an allowance recorded:
Recorded Investment, With an allowance recorded	$ 16,280	$ 19,727
Unpaid Principal Balance, With an allowance recorded	16,376	19,808
Related Allowance, With an allowance recorded	1,648	1,494
Average Recorded Investment, With an allowance recorded	19,972	20,926
Interest Income Recognized, With an allowance recorded	864	1,004
Total Impaired Loans:
Recorded Investment, Total Impaired Loans	81,800	128,600
Related Allowance, Total Impaired Loans	1,648	1,494
Average Recorded Investment, Total Impaired Loans	95,000	148,900
Mortgage Loans [Member] | Multi-Family Residential [Member]
With no related allowance recorded:
Recorded Investment, With no related allowance recorded	18,709	19,753
Unpaid Principal Balance, With no related allowance recorded	20,931	22,889
Average Recorded Investment, With no related allowance recorded	22,091	27,720
Interest Income Recognized, With no related allowance recorded	402	429
With an allowance recorded:
Recorded Investment, With an allowance recorded	3,048	1,922
Unpaid Principal Balance, With an allowance recorded	3,049	1,937
Related Allowance, With an allowance recorded	312	183
Average Recorded Investment, With an allowance recorded	2,892	3,174
Interest Income Recognized, With an allowance recorded	170	124
Total Impaired Loans:
Related Allowance, Total Impaired Loans	312	183
Mortgage Loans [Member] | Commercial Real Estate Loans [Member]
With no related allowance recorded:
Recorded Investment, With no related allowance recorded	16,721	34,672
Unpaid Principal Balance, With no related allowance recorded	17,405	38,594
Average Recorded Investment, With no related allowance recorded	19,846	43,976
Interest Income Recognized, With no related allowance recorded	266	536
With an allowance recorded:
Recorded Investment, With an allowance recorded	3,036	7,773
Unpaid Principal Balance, With an allowance recorded	3,102	7,839
Related Allowance, With an allowance recorded	164	359
Average Recorded Investment, With an allowance recorded	6,388	6,530
Interest Income Recognized, With an allowance recorded	194	400
Total Impaired Loans:
Related Allowance, Total Impaired Loans	164	359
Mortgage Loans [Member] | One-To-Four Family - Mixed-Use Property [Member]
With no related allowance recorded:
Recorded Investment, With no related allowance recorded	12,748	23,054
Unpaid Principal Balance, With no related allowance recorded	15,256	25,825
Average Recorded Investment, With no related allowance recorded	13,916	27,018
Interest Income Recognized, With no related allowance recorded	319	485
With an allowance recorded:
Recorded Investment, With an allowance recorded	4,191	3,314
Unpaid Principal Balance, With an allowance recorded	4,221	3,313
Related Allowance, With an allowance recorded	875	571
Average Recorded Investment, With an allowance recorded	4,041	4,385
Interest Income Recognized, With an allowance recorded	228	205
Total Impaired Loans:
Related Allowance, Total Impaired Loans	875	571
Mortgage Loans [Member] | One-To-Four Family - Residential [Member]
With no related allowance recorded:
Recorded Investment, With no related allowance recorded	14,026	15,328
Unpaid Principal Balance, With no related allowance recorded	17,527	18,995
Average Recorded Investment, With no related allowance recorded	14,529	15,047
Interest Income Recognized, With no related allowance recorded	125	186
With an allowance recorded:
Recorded Investment, With an allowance recorded	364	374
Unpaid Principal Balance, With an allowance recorded	364	374
Related Allowance, With an allowance recorded	58	94
Average Recorded Investment, With an allowance recorded	368	188
Interest Income Recognized, With an allowance recorded	15	19
Total Impaired Loans:
Related Allowance, Total Impaired Loans	58	94
Mortgage Loans [Member] | Co-Operative Apartments [Member]
With no related allowance recorded:
Recorded Investment, With no related allowance recorded	59	237
Unpaid Principal Balance, With no related allowance recorded	147	299
Average Recorded Investment, With no related allowance recorded	189	174
Interest Income Recognized, With no related allowance recorded		2
With an allowance recorded:
Average Recorded Investment, With an allowance recorded		101
Mortgage Loans [Member] | Construction [Member]
With no related allowance recorded:
Recorded Investment, With no related allowance recorded		10,598
Unpaid Principal Balance, With no related allowance recorded	118	15,182
Average Recorded Investment, With no related allowance recorded	4,014	14,689
Interest Income Recognized, With no related allowance recorded		173
With an allowance recorded:
Recorded Investment, With an allowance recorded	746	3,805
Unpaid Principal Balance, With an allowance recorded	746	3,805
Related Allowance, With an allowance recorded	17	38
Average Recorded Investment, With an allowance recorded	1,929	4,275
Interest Income Recognized, With an allowance recorded	18	140
Total Impaired Loans:
Related Allowance, Total Impaired Loans	17	38
Mortgage Loans [Member]
With an allowance recorded:
Related Allowance, With an allowance recorded	1,426	1,245
Total Impaired Loans:
Recorded Investment, Total Impaired Loans	73,648	120,830
Unpaid Principal Balance, Total Impaired Loans	82,866	139,052
Related Allowance, Total Impaired Loans	1,426	1,245
Average Recorded Investment, Total Impaired Loans	90,203	147,277
Interest Income Recognized, Total Impaired Loans	1,737	2,699
Non-Mortgage Loans [Member] | Small Business Administration [Member]
With no related allowance recorded:
Recorded Investment, With no related allowance recorded		850
Unpaid Principal Balance, With no related allowance recorded		1,075
Average Recorded Investment, With no related allowance recorded	247	1,042
Interest Income Recognized, With no related allowance recorded		25
Non-Mortgage Loans [Member] | Commercial Business And Other [Member]
With no related allowance recorded:
Recorded Investment, With no related allowance recorded	3,225	4,391
Unpaid Principal Balance, With no related allowance recorded	5,527	5,741
Average Recorded Investment, With no related allowance recorded	5,309	5,102
Interest Income Recognized, With no related allowance recorded	268	53
With an allowance recorded:
Recorded Investment, With an allowance recorded	4,895	2,539
Unpaid Principal Balance, With an allowance recorded	4,894	2,540
Related Allowance, With an allowance recorded	222	249
Average Recorded Investment, With an allowance recorded	4,354	2,273
Interest Income Recognized, With an allowance recorded	239	116
Total Impaired Loans:
Related Allowance, Total Impaired Loans	222	249
Non-Mortgage Loans [Member]
With no related allowance recorded:
Recorded Investment, With no related allowance recorded	65,488	108,883
Unpaid Principal Balance, With no related allowance recorded	76,911	128,600
Average Recorded Investment, With no related allowance recorded	80,141	134,768
Interest Income Recognized, With no related allowance recorded	1,380	1,889
With an allowance recorded:
Related Allowance, With an allowance recorded	222	249
Total Impaired Loans:
Recorded Investment, Total Impaired Loans	8,120	7,780
Unpaid Principal Balance, Total Impaired Loans	10,421	9,356
Related Allowance, Total Impaired Loans	222	249
Average Recorded Investment, Total Impaired Loans	9,910	8,417
Interest Income Recognized, Total Impaired Loans	507	194
Multi-Family Residential [Member]
Total Impaired Loans:
Recorded Investment, Total Impaired Loans	29,029	39,114
Commercial Real Estate Loans [Member]
Total Impaired Loans:
Recorded Investment, Total Impaired Loans	30,323	38,974
One-To-Four Family - Mixed-Use Property [Member]
Total Impaired Loans:
Recorded Investment, Total Impaired Loans	22,890	39,610
One-To-Four Family - Residential [Member]
Total Impaired Loans:
Recorded Investment, Total Impaired Loans	16,874	20,551
Co-Operative Apartments [Member]
Total Impaired Loans:
Recorded Investment, Total Impaired Loans	59	340
Construction [Member]
Total Impaired Loans:
Recorded Investment, Total Impaired Loans	746	14,403
Small Business Administration [Member]
Total Impaired Loans:
Recorded Investment, Total Impaired Loans	310	779
Commercial Business And Other [Member]
Total Impaired Loans:
Recorded Investment, Total Impaired Loans	$ 15,814	$ 22,543