Note 5 - Loans - Activity in the Allowance for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2017	Mar. 31, 2016
Allowance for credit losses:
Beginning balance	$ 22,229	$ 21,535
Charge-off's	(179)	(147)
Recoveries	161	605
Provision (benefit)
Ending balance	22,211	21,993
Multi-family Residential Portfolio Segment [Member]
Allowance for credit losses:
Beginning balance	5,923	6,718
Charge-off's	(14)	(42)
Recoveries	30	13
Provision (benefit)	(32)	(391)
Ending balance	5,907	6,298
Commercial Real Estate Portfolio Segment [Member]
Allowance for credit losses:
Beginning balance	4,487	4,239
Charge-off's	0
Recoveries	68
Provision (benefit)	(70)	(38)
Ending balance	4,485	4,201
One-To-Four Family - Mixed-Use Property Portfolio Segment [Member]
Allowance for credit losses:
Beginning balance	2,903	4,227
Charge-off's	(34)	(14)
Recoveries		187
Provision (benefit)	(178)	(893)
Ending balance	2,691	3,507
One-To-Four Family - Residential Portfolio Segment [Member]
Allowance for credit losses:
Beginning balance	1,015	1,227
Charge-off's		(66)
Recoveries		365
Provision (benefit)	(36)	(484)
Ending balance	979	1,042
Construction Portfolio Segment [Member]
Allowance for credit losses:
Beginning balance	92	50
Charge-off's	0	0
Recoveries	0	0
Provision (benefit)	2	5
Ending balance	94	55
Small Business Administration Portfolio Segment [Member]
Allowance for credit losses:
Beginning balance	481	262
Charge-off's	(65)	0
Recoveries	41	31
Provision (benefit)	(140)	(24)
Ending balance	317	269
Taxi Medallion Portfolio Segment [Member]
Allowance for credit losses:
Beginning balance	2,243	343
Charge-off's	(54)
Recoveries
Provision (benefit)	24	(8)
Ending balance	2,213	335
Commercial Business and Other Portfolio Segment [Member]
Allowance for credit losses:
Beginning balance	4,492	4,469
Charge-off's	(12)	(25)
Recoveries	22	9
Provision (benefit)	208	138
Ending balance	4,710	4,591
Unallocated Financing Receivables [Member]
Allowance for credit losses:
Beginning balance	593
Charge-off's
Recoveries
Provision (benefit)	222	1,695
Ending balance	$ 815	$ 1,695

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A valuation allowance for financing receivables that are expected to be uncollectible.

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Amount of expense related loan transactions, lease transactions, credit loss from transactions other than loan and lease transactions, and other loss based on assessment of uncollectability from the counterparty to reduce the account to their net realizable value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
-Subparagraph (c)(2)
-URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 225
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04.11)
-URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585

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