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Note 5 - Loans Acquired - Carrying Value of all Acquired Impaired Loans (Details) - USD ($) $ in Thousands | Dec. 31, 2016 | Dec. 31, 2015
--- | --- | ---
Acquired loans | [1] | $ 1,305,683 | $ 1,672,901
Consumer Portfolio Segment [Member] |  |  |
Acquired loans |  | 49,677 | 75,606
Commercial Real Estate Portfolio Segment [Member] |  |  |
Acquired loans |  | 1,170,871 | 1,432,189
Commercial Portfolio Segment [Member] |  |  |
Acquired loans |  | 85,135 | 165,106
Credit Card Receivable [Member] | Consumer Portfolio Segment [Member] |  |  |
Acquired loans |  |  |
Other Loans [Member] | Consumer Portfolio Segment [Member] |  |  |
Acquired loans |  | 49,677 | 75,606
Other Loans [Member] | Commercial Real Estate Portfolio Segment [Member] |  |  |
Acquired loans |  | 690,108 | 854,068
Construction Loans [Member] | Commercial Real Estate Portfolio Segment [Member] |  |  |
Acquired loans |  | 57,587 | 77,119
Single Family Residential Loans [Member] | Commercial Real Estate Portfolio Segment [Member] |  |  |
Acquired loans |  | 423,176 | 501,002
Commercial Loans [Member] | Commercial Portfolio Segment [Member] |  |  |
Acquired loans |  | 81,837 | 154,533
Agricultural Loans [Member] | Commercial Portfolio Segment [Member] |  |  |
Acquired loans |  | $ 3,298 | $ 10,573
[1] | Loans acquired are reported net of a $954,000 allowance at December 31, 2016 and 2015.

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