Note 9 - Borrowed Funds and Securities Sold Under Agreements to Repurchase (Details) - Borrowings Which Have Call Provisions (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Note 9 - Borrowed Funds and Securities Sold Under Agreements to Repurchase (Details) - Borrowings Which Have Call Provisions [Line Items]
Amount, FHLB-NY advances - fixed rate	$ 116,000	$ 155,300
Amount, Repurchase agreements - fixed rate	911,721	827,252
Repurchase agreement 11 [Member]
Note 9 - Borrowed Funds and Securities Sold Under Agreements to Repurchase (Details) - Borrowings Which Have Call Provisions [Line Items]
Maturity Date, FHLB-NY advances - fixed rate	7/12/2016
Call Date, FHLB-NY advances - fixed rate	1/12/2015
Amount, Repurchase agreements - fixed rate	20,000
Rate, Repurchase agreements - fixed rate	2.20%
Maturity Date, Repurchase agreements - fixed rate	7/12/2016
Call Date, Repurchase agreements - fixed rate	1/12/2015
Repurchase agreement 1 [Member]
Note 9 - Borrowed Funds and Securities Sold Under Agreements to Repurchase (Details) - Borrowings Which Have Call Provisions [Line Items]
Maturity Date, FHLB-NY advances - fixed rate	10/18/2017
Call Date, FHLB-NY advances - fixed rate	1/20/2015
Amount, Repurchase agreements - fixed rate	18,000
Rate, Repurchase agreements - fixed rate	4.28%
Maturity Date, Repurchase agreements - fixed rate	10/18/2017
Call Date, Repurchase agreements - fixed rate	1/20/2015
Repurchase agreement 10 [Member]
Note 9 - Borrowed Funds and Securities Sold Under Agreements to Repurchase (Details) - Borrowings Which Have Call Provisions [Line Items]
Maturity Date, FHLB-NY advances - fixed rate	4/19/2016
Call Date, FHLB-NY advances - fixed rate	1/20/2015
Amount, Repurchase agreements - fixed rate	18,000
Rate, Repurchase agreements - fixed rate	1.60%
Maturity Date, Repurchase agreements - fixed rate	4/19/2016
Call Date, Repurchase agreements - fixed rate	1/20/2015
Repurchase agreement 7 [Member]
Note 9 - Borrowed Funds and Securities Sold Under Agreements to Repurchase (Details) - Borrowings Which Have Call Provisions [Line Items]
Maturity Date, FHLB-NY advances - fixed rate	9/19/2017
Call Date, FHLB-NY advances - fixed rate	3/19/2015
Amount, Repurchase agreements - fixed rate	20,000
Rate, Repurchase agreements - fixed rate	4.05%
Maturity Date, Repurchase agreements - fixed rate	9/19/2017
Call Date, Repurchase agreements - fixed rate	3/19/2015
Repurchase agreement 3 [Member]
Note 9 - Borrowed Funds and Securities Sold Under Agreements to Repurchase (Details) - Borrowings Which Have Call Provisions [Line Items]
Maturity Date, FHLB-NY advances - fixed rate	8/1/2020
Call Date, FHLB-NY advances - fixed rate	2/1/2016
Amount, Repurchase agreements - fixed rate	10,000
Rate, Repurchase agreements - fixed rate	3.08%
Maturity Date, Repurchase agreements - fixed rate	8/1/2020
Call Date, Repurchase agreements - fixed rate	2/1/2016
Repurchase agreement 4 [Member]
Note 9 - Borrowed Funds and Securities Sold Under Agreements to Repurchase (Details) - Borrowings Which Have Call Provisions [Line Items]
Maturity Date, FHLB-NY advances - fixed rate	2/1/2020
Call Date, FHLB-NY advances - fixed rate	2/1/2016
Amount, Repurchase agreements - fixed rate	10,000
Rate, Repurchase agreements - fixed rate	3.19%
Maturity Date, Repurchase agreements - fixed rate	2/1/2020
Call Date, Repurchase agreements - fixed rate	2/1/2016
Repurchase agreement 2 [Member]
Note 9 - Borrowed Funds and Securities Sold Under Agreements to Repurchase (Details) - Borrowings Which Have Call Provisions [Line Items]
Maturity Date, FHLB-NY advances - fixed rate	8/1/2020
Call Date, FHLB-NY advances - fixed rate	2/1/2016
Amount, Repurchase agreements - fixed rate	20,000
Rate, Repurchase agreements - fixed rate	3.76%
Maturity Date, Repurchase agreements - fixed rate	8/1/2020
Call Date, Repurchase agreements - fixed rate	2/1/2016
FHLB - NY advance 1 [Member]
Note 9 - Borrowed Funds and Securities Sold Under Agreements to Repurchase (Details) - Borrowings Which Have Call Provisions [Line Items]
Amount, FHLB-NY advances - fixed rate	20,000
Rate, FHLB-NY advances - fixed rate	4.43%
Maturity Date, FHLB-NY advances - fixed rate	10/10/2017
Call Date, FHLB-NY advances - fixed rate	1/9/2015
Maturity Date, Repurchase agreements - fixed rate	10/10/2017
Call Date, Repurchase agreements - fixed rate	1/9/2015
FHLB - NY advance 2 [Member]
Note 9 - Borrowed Funds and Securities Sold Under Agreements to Repurchase (Details) - Borrowings Which Have Call Provisions [Line Items]
Amount, FHLB-NY advances - fixed rate	30,000
Rate, FHLB-NY advances - fixed rate	4.60%
Maturity Date, FHLB-NY advances - fixed rate	10/10/2017
Call Date, FHLB-NY advances - fixed rate	1/9/2015
Maturity Date, Repurchase agreements - fixed rate	10/10/2017
Call Date, Repurchase agreements - fixed rate	1/9/2015
FHLB - NY advance 3 [Member]
Note 9 - Borrowed Funds and Securities Sold Under Agreements to Repurchase (Details) - Borrowings Which Have Call Provisions [Line Items]
Amount, FHLB-NY advances - fixed rate	10,000
Rate, FHLB-NY advances - fixed rate	4.13%
Maturity Date, FHLB-NY advances - fixed rate	9/18/2017
Call Date, FHLB-NY advances - fixed rate	3/17/2015
Maturity Date, Repurchase agreements - fixed rate	9/18/2017
Call Date, Repurchase agreements - fixed rate	3/17/2015
FHLB - NY advance 4 [Member]
Note 9 - Borrowed Funds and Securities Sold Under Agreements to Repurchase (Details) - Borrowings Which Have Call Provisions [Line Items]
Amount, FHLB-NY advances - fixed rate	10,000
Rate, FHLB-NY advances - fixed rate	4.32%
Maturity Date, FHLB-NY advances - fixed rate	9/18/2017
Call Date, FHLB-NY advances - fixed rate	3/17/2015
Maturity Date, Repurchase agreements - fixed rate	9/18/2017
Call Date, Repurchase agreements - fixed rate	3/17/2015
FHLB - NY advance 5 [Member]
Note 9 - Borrowed Funds and Securities Sold Under Agreements to Repurchase (Details) - Borrowings Which Have Call Provisions [Line Items]
Amount, FHLB-NY advances - fixed rate	$ 10,000
Rate, FHLB-NY advances - fixed rate	4.15%
Maturity Date, FHLB-NY advances - fixed rate	9/18/2017
Call Date, FHLB-NY advances - fixed rate	3/18/2015
Maturity Date, Repurchase agreements - fixed rate	9/18/2017
Call Date, Repurchase agreements - fixed rate	3/18/2015