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Note 8 - Borrowings - Schedule of Remaining Contractual Maturities of Repurchase Agreements by Type of Collateral Pledged (Details) - USD ($) $ in Thousands | Jun. 30, 2017 | Dec. 31, 2016
--- | --- | ---
Remaining contractual maturities of repurchase agreements | $ 86,011 | $ 98,005
Maturity Overnight and Continuous [Member] |  |
Remaining contractual maturities of repurchase agreements | 60,358 |
Maturity Less than 30 Days [Member] |  |
Remaining contractual maturities of repurchase agreements |  |
Maturity 30 to 90 Days [Member] |  |
Remaining contractual maturities of repurchase agreements | 9 |
Maturity Greater than 90 Days [Member] |  |
Remaining contractual maturities of repurchase agreements | 25,644 |
US Government Agencies Debt Securities [Member] |  |
Remaining contractual maturities of repurchase agreements | 16,573 |
US Government Agencies Debt Securities [Member] | Maturity Overnight and Continuous [Member] |  |
Remaining contractual maturities of repurchase agreements | 13,173 |
US Government Agencies Debt Securities [Member] | Maturity Less than 30 Days [Member] |  |
Remaining contractual maturities of repurchase agreements |  |
US Government Agencies Debt Securities [Member] | Maturity 30 to 90 Days [Member] |  |
Remaining contractual maturities of repurchase agreements |  |
US Government Agencies Debt Securities [Member] | Maturity Greater than 90 Days [Member] |  |
Remaining contractual maturities of repurchase agreements | 3,400 |
US Treasury Securities [Member] |  |
Remaining contractual maturities of repurchase agreements | 11,634 |
US Treasury Securities [Member] | Maturity Overnight and Continuous [Member] |  |
Remaining contractual maturities of repurchase agreements | 2,634 |
US Treasury Securities [Member] | Maturity Less than 30 Days [Member] |  |
Remaining contractual maturities of repurchase agreements |  |
US Treasury Securities [Member] | Maturity 30 to 90 Days [Member] |  |
Remaining contractual maturities of repurchase agreements |  |
US Treasury Securities [Member] | Maturity Greater than 90 Days [Member] |  |
Remaining contractual maturities of repurchase agreements | 9,000 |
US States and Political Subdivisions Debt Securities [Member] |  |
Remaining contractual maturities of repurchase agreements | 39,296 |
US States and Political Subdivisions Debt Securities [Member] | Maturity Overnight and Continuous [Member] |  |
Remaining contractual maturities of repurchase agreements | 39,296 |
US States and Political Subdivisions Debt Securities [Member] | Maturity Less than 30 Days [Member] |  |
Remaining contractual maturities of repurchase agreements |  |
US States and Political Subdivisions Debt Securities [Member] | Maturity 30 to 90 Days [Member] |  |
Remaining contractual maturities of repurchase agreements |  |
US States and Political Subdivisions Debt Securities [Member] | Maturity Greater than 90 Days [Member] |  |
Remaining contractual maturities of repurchase agreements |  |
Mortgage-backed Agency Securities [Member] |  |
Remaining contractual maturities of repurchase agreements | 18,508 |
Mortgage-backed Agency Securities [Member] | Maturity Overnight and Continuous [Member] |  |
Remaining contractual maturities of repurchase agreements | 5,255 |
Mortgage-backed Agency Securities [Member] | Maturity Less than 30 Days [Member] |  |
Remaining contractual maturities of repurchase agreements |  |
Mortgage-backed Agency Securities [Member] | Maturity 30 to 90 Days [Member] |  |
Remaining contractual maturities of repurchase agreements | 9 |
Mortgage-backed Agency Securities [Member] | Maturity Greater than 90 Days [Member] |  |
Remaining contractual maturities of repurchase agreements | $ 13,244 |

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- Definition Amount, after the effects of master netting arrangements, of funds outstanding borrowed in the form of a security repurchase agreement between the entity and another party for the sale and repurchase of identical or substantially the same securities at a date certain for a specified price. Includes liabilities not subject to a master netting arrangement and not elected to be offset. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(m)(1)(a)(i)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.13(1)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=82849420&loc=SL20226008-175313 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=49176635&loc=d3e9760-107771 + Details
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