Note 5 - Loans - Activity in the Allowance for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Beginning balance	$ 22,157	$ 22,198	$ 22,229	$ 21,535
Charge-off's	(324)	(541)	(853)	(789)
Recoveries	170	138	627	1,049
Provision (Benefit)	3,266		3,266
Ending balance	25,269	21,795	25,269	21,795
Multi-family Residential Portfolio Segment [Member]
Beginning balance	5,917	6,177	5,923	6,718
Charge-off's	(290)	(90)	(452)	(155)
Recoveries	66	11	297	230
Provision (Benefit)	43	(103)	(32)	(798)
Ending balance	5,736	5,995	5,736	5,995
Commercial Real Estate Portfolio Segment [Member]
Beginning balance	4,688	4,445	4,487	4,239
Charge-off's			(4)
Recoveries	25	11	93	11
Provision (Benefit)	(86)	60	51	266
Ending balance	4,627	4,516	4,627	4,516
One-To-Four Family - Mixed-Use Property Portfolio Segment [Member]
Beginning balance	2,568	3,326	2,903	4,227
Charge-off's	(1)	(71)	(36)	(139)
Recoveries		47	68	252
Provision (Benefit)	(49)	(234)	(417)	(1,272)
Ending balance	2,518	3,068	2,518	3,068
One-To-Four Family - Residential Portfolio Segment [Member]
Beginning balance	990	1,044	1,015	1,227
Charge-off's			(170)	(74)
Recoveries	58		58	366
Provision (Benefit)	(90)	(27)	55	(502)
Ending balance	958	1,017	958	1,017
Construction Portfolio Segment [Member]
Beginning balance	130	75	92	50
Charge-off's	0	0	0	0
Recoveries	0	0	0	0
Provision (Benefit)	(13)	15	25	40
Ending balance	117	90	117	90
Small Business Administration Portfolio Segment [Member]
Beginning balance	306	574	481	262
Charge-off's		(361)	(89)	(362)
Recoveries	17	44	66	118
Provision (Benefit)	70	151	(65)	390
Ending balance	393	408	393	408
Taxi Medallion Portfolio Segment [Member]
Beginning balance	2,330	1,042	2,243	343
Charge-off's			(54)
Recoveries
Provision (Benefit)	3,661	1,290	3,802	1,989
Ending balance	5,991	2,332	5,991	2,332
Commercial Business and Other Portfolio Segment [Member]
Beginning balance	4,668	4,669	4,492	4,469
Charge-off's	(33)	(19)	(48)	(59)
Recoveries	4	25	45	72
Provision (Benefit)	290	(477)	440	(284)
Ending balance	4,929	4,198	4,929	4,198
Unallocated Financing Receivables [Member]
Beginning balance	560	846	593
Charge-off's
Recoveries
Provision (Benefit)	(560)	(675)	(593)	171
Ending balance		$ 171		$ 171

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

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Amount of recovery of financing receivables doubtful of collection that were previously charged off.

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Amount of direct write-downs of financing receivables charged against the allowance.

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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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