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Note 11 - Fair Value of Financial Instruments - Carrying Amounts and Estimated Fair Values of Selected Financial Instruments (Details) - USD ($) $ in Thousands | Mar. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Securities held-to-maturity, amortized cost | $ 30,481 | $ 32,018
Securities available for sale, fair value | 846,024 | 822,655
Interest Rate Swap [Member] |  |
Interest rate swaps, assets | 5,904 | 1,001
Interest rate swaps | 4,566 | 2,239
Collateralized Mortgage Backed Securities [Member] |  |
Securities held-to-maturity, amortized cost | 7,949 | 7,953
Securities available for sale, fair value | 579,185 | 557,953
Other Debt Obligations [Member] |  |
Securities held-to-maturity, amortized cost | 22,532 | 24,065
Securities available for sale, fair value | 266,839 | 264,702
Reported Value Measurement [Member] |  |
Cash and due from banks | 58,677 | 118,561
Loans | 5,588,746 | 5,551,484
FHLB-NY stock | 51,182 | 57,282
Accrued interest receivable | 27,226 | 25,485
Deposits | 5,080,209 | 4,960,784
Borrowings | 1,116,416 | 1,250,843
Accrued interest payable | 7,989 | 5,890
Reported Value Measurement [Member] | Interest Rate Swap [Member] |  |
Interest rate swaps, assets | 6,474 | 15,961
Interest rate swaps | 4,996 | 2,239
Reported Value Measurement [Member] | Collateralized Mortgage Backed Securities [Member] |  |
Securities held-to-maturity, amortized cost | 7,949 | 7,953
Securities available for sale, fair value | 579,185 | 557,953
Reported Value Measurement [Member] | Other Debt Obligations [Member] |  |
Securities held-to-maturity, amortized cost | 22,532 | 24,065
Securities available for sale, fair value | 266,839 | 264,702
Estimate of Fair Value Measurement [Member] |  |
Cash and due from banks | 58,677 | 118,561
Loans | 5,547,521 | 5,496,266
FHLB-NY stock | 51,182 | 57,282
Accrued interest receivable | 27,226 | 25,485
Deposits | 5,079,020 | 4,955,077
Borrowings | 1,111,670 | 1,241,745
Accrued interest payable | 7,989 | 5,890
Estimate of Fair Value Measurement [Member] | Interest Rate Swap [Member] |  |
Interest rate swaps, assets | 6,474 | 15,961
Interest rate swaps | 4,996 | 2,239
Estimate of Fair Value Measurement [Member] | Collateralized Mortgage Backed Securities [Member] |  |
Securities held-to-maturity, amortized cost | 7,726 | 7,366
Securities available for sale, fair value | 579,185 | 557,953
Estimate of Fair Value Measurement [Member] | Other Debt Obligations [Member] |  |
Securities held-to-maturity, amortized cost | 22,276 | 22,508
Securities available for sale, fair value | 266,839 | 264,702
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Cash and due from banks | 58,677 | 118,561
Loans |  |
FHLB-NY stock |  |
Accrued interest receivable | 10 | 54
Deposits | 3,568,439 | 3,397,474
Borrowings |  |
Accrued interest payable |  |
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 1 [Member] | Interest Rate Swap [Member] |  |
Interest rate swaps, assets |  |
Interest rate swaps |  |
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 1 [Member] | Collateralized Mortgage Backed Securities [Member] |  |
Securities held-to-maturity, amortized cost |  |
Securities available for sale, fair value |  |
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 1 [Member] | Other Debt Obligations [Member] |  |
Securities held-to-maturity, amortized cost |  |
Securities available for sale, fair value | 11,802 | 11,586
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Cash and due from banks |  |
Loans |  |
FHLB-NY stock | 51,182 | 57,282
Accrued interest receivable | 3,280 | 2,756
Deposits | 1,510,581 | 1,557,603
Borrowings | 1,068,729 | 1,199,896
Accrued interest payable | 7,989 | 5,890
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member] | Interest Rate Swap [Member] |  |
Interest rate swaps, assets | 6,474 | 15,961
Interest rate swaps | 4,996 | 2,239
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member] | Collateralized Mortgage Backed Securities [Member] |  |
Securities held-to-maturity, amortized cost | 7,726 | 7,366
Securities available for sale, fair value | 579,185 | 557,953
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member] | Other Debt Obligations [Member] |  |
Securities held-to-maturity, amortized cost |  |
Securities available for sale, fair value | 253,748 | 251,860
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Cash and due from banks |  |
Loans | 5,547,521 | 5,496,266
FHLB-NY stock |  |
Accrued interest receivable | 23,936 | 22,675
Deposits |  |
Borrowings | 42,941 | 41,849
Accrued interest payable |  |
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 3 [Member] | Interest Rate Swap [Member] |  |
Interest rate swaps, assets |  |
Interest rate swaps |  |
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 3 [Member] | Collateralized Mortgage Backed Securities [Member] |  |
Securities held-to-maturity, amortized cost |  |
Securities available for sale, fair value |  |
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 3 [Member] | Other Debt Obligations [Member] |  |
Securities held-to-maturity, amortized cost | 22,276 | 22,508
Securities available for sale, fair value | $ 1,289 | $ 1,256

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- Definition Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References No definition available. + Details
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