Note 5 - Loans (Details) - Impaired Loans (USD $) In Thousands, unless otherwise specified	6 Months Ended	12 Months Ended
	Jun. 30, 2014	Dec. 31, 2013
With no related allowance recorded:
Recorded Investment	$ 61,132	$ 65,488
Unpaid Principal Balance	70,404	76,911
Average Recorded Investment	64,093	80,141
Interest Income Recognized	491	1,380
With an allowance recorded:
Recorded Investment	14,887	16,280
Unpaid Principal Balance	15,040	16,376
Related Allowance	1,303	1,648
Average Recorded Investment	14,884	19,972
Interest Income Recognized	324	864
Total Impaired Loans:
Recorded Investment	99,602	116,045
Related Allowance	1,303	1,648
Multi-Family Residential [Member] | Mortgage Loans [Member]
With no related allowance recorded:
Recorded Investment	17,252	18,709
Unpaid Principal Balance	19,470	20,931
Average Recorded Investment	17,670	22,091
Interest Income Recognized	120	402
With an allowance recorded:
Recorded Investment	3,361	3,048
Unpaid Principal Balance	3,361	3,049
Related Allowance	299	312
Average Recorded Investment	3,086	2,892
Interest Income Recognized	33	170
Total Impaired Loans:
Related Allowance	299	312
Multi-Family Residential [Member]
Total Impaired Loans:
Recorded Investment	27,174	29,029
Commercial Real Estate Loans [Member] | Mortgage Loans [Member]
With no related allowance recorded:
Recorded Investment	11,535	16,721
Unpaid Principal Balance	11,865	17,405
Average Recorded Investment	14,036	19,846
Interest Income Recognized	112	266
With an allowance recorded:
Recorded Investment	5,193	3,036
Unpaid Principal Balance	5,259	3,102
Related Allowance	197	164
Average Recorded Investment	4,108	6,388
Interest Income Recognized	96	194
Total Impaired Loans:
Related Allowance	197	164
Commercial Real Estate Loans [Member]
Total Impaired Loans:
Recorded Investment	24,965	30,323
One-To-Four Family - Mixed-Use Property [Member] | Mortgage Loans [Member]
With no related allowance recorded:
Recorded Investment	13,059	12,748
Unpaid Principal Balance	15,221	15,256
Average Recorded Investment	12,987	13,916
Interest Income Recognized	101	319
With an allowance recorded:
Recorded Investment	3,645	4,191
Unpaid Principal Balance	3,732	4,221
Related Allowance	601	875
Average Recorded Investment	3,396	4,041
Interest Income Recognized	75	228
Total Impaired Loans:
Related Allowance	601	875
One-To-Four Family - Mixed-Use Property [Member]
Total Impaired Loans:
Recorded Investment	19,120	22,890
One-To-Four Family - Residential [Member] | Mortgage Loans [Member]
With no related allowance recorded:
Recorded Investment	13,146	14,026
Unpaid Principal Balance	16,119	17,527
Average Recorded Investment	13,363	14,529
Interest Income Recognized	46	125
With an allowance recorded:
Recorded Investment	359	364
Unpaid Principal Balance	359	364
Related Allowance	56	58
Average Recorded Investment	361	368
Interest Income Recognized	7	15
Total Impaired Loans:
Related Allowance	56	58
One-To-Four Family - Residential [Member]
Total Impaired Loans:
Recorded Investment	16,015	16,874
Co-Operative Apartments [Member] | Mortgage Loans [Member]
With no related allowance recorded:
Recorded Investment		59
Unpaid Principal Balance		147
Average Recorded Investment		189
Co-Operative Apartments [Member]
Total Impaired Loans:
Recorded Investment		59
Construction [Member] | Mortgage Loans [Member]
With no related allowance recorded:
Recorded Investment	570
Unpaid Principal Balance	570	118
Average Recorded Investment	570	4,014
Interest Income Recognized	14
With an allowance recorded:
Recorded Investment		746
Unpaid Principal Balance		746
Related Allowance		17
Average Recorded Investment	373	1,929
Interest Income Recognized	86	18
Total Impaired Loans:
Related Allowance		17
Construction [Member]
Total Impaired Loans:
Recorded Investment	570	746
Small Business Administration [Member] | Non-Mortgage Loans [Member]
With no related allowance recorded:
Average Recorded Investment		247
Small Business Administration [Member]
Total Impaired Loans:
Recorded Investment	301	310
Commercial Business And Other [Member] | Non-Mortgage Loans [Member]
With no related allowance recorded:
Recorded Investment	5,570	3,225
Unpaid Principal Balance	7,159	5,527
Average Recorded Investment	5,467	5,309
Interest Income Recognized	98	268
With an allowance recorded:
Recorded Investment	2,329	4,895
Unpaid Principal Balance	2,329	4,894
Related Allowance	150	222
Average Recorded Investment	3,560	4,354
Interest Income Recognized	27	239
Total Impaired Loans:
Related Allowance	150	222
Commercial Business And Other [Member]
Total Impaired Loans:
Recorded Investment	11,457	15,814
Mortgage Loans [Member]
With an allowance recorded:
Related Allowance	1,153	1,426
Total Impaired Loans:
Recorded Investment	68,120	73,648
Unpaid Principal Balance	75,956	82,866
Related Allowance	1,153	1,426
Average Recorded Investment	69,950	90,203
Interest Income Recognized	690	1,737
Non-Mortgage Loans [Member]
With an allowance recorded:
Related Allowance	150	222
Total Impaired Loans:
Recorded Investment	7,899	8,120
Unpaid Principal Balance	9,488	10,421
Related Allowance	150	222
Average Recorded Investment	9,027	9,910
Interest Income Recognized	$ 125	$ 507