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Note 12 - Fair Value Measurements - Financial Assets and Liabilities Measured on a Non-recurring Basis (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2017 | Sep. 30, 2016 | Dec. 31, 2016 | Dec. 31, 2015
Total at Fair Value | $ 58,974 |  |  |  | $ 58,974 |  |  |  | $ 37,981 |  |  |
Total Losses | 417 |  | $ (19) |  | 1,044 |  | $ 428 |  | 1,307 |  | $ 2,507 |
Fair Value, Inputs, Level 1 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Total at Fair Value |  |  |  |  |  |  |  |  |  |  |  |
Fair Value, Inputs, Level 2 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Total at Fair Value | 6,317 |  |  |  | 6,317 |  |  |  | 6,006 |  |  |
Fair Value, Inputs, Level 3 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Total at Fair Value | 52,657 |  |  |  | 52,657 |  |  |  | 31,975 |  |  |
Impaired Loans [Member] |  |  |  |  |  |  |  |  |  |  |  |
Total at Fair Value | 45,312 |  |  |  | 45,312 |  |  |  | 23,936 |  |  |
Total Losses |  |  |  |  | 25 |  |  |  | 322 |  | 1,550 |
Impaired Loans [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Total at Fair Value |  |  |  |  |  |  |  |  |  |  |  |
Impaired Loans [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Total at Fair Value |  |  |  |  |  |  |  |  |  |  |  |
Impaired Loans [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Total at Fair Value | 45,312 |  |  |  | 45,312 |  |  |  | 23,936 |  |  |
Impaired Loans [Member] | Commercial Portfolio Segment [Member] |  |  |  |  |  |  |  |  |  |  |  |
Total at Fair Value | 12,525 |  |  |  | 12,525 |  |  |  | 2,813 |  |  |
Total Losses |  |  |  |  | 25 |  |  |  | 322 |  | 806 |
Impaired Loans [Member] | Commercial Portfolio Segment [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Total at Fair Value |  |  |  |  |  |  |  |  |  |  |  |
Impaired Loans [Member] | Commercial Portfolio Segment [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Total at Fair Value |  |  |  |  |  |  |  |  |  |  |  |
Impaired Loans [Member] | Commercial Portfolio Segment [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Total at Fair Value | 12,525 |  |  |  | 12,525 |  |  |  | 2,813 |  |  |
Impaired Loans [Member] | Commercial Real Estate Portfolio Segment [Member] |  |  |  |  |  |  |  |  |  |  |  |
Total at Fair Value | 21,997 |  |  |  | 21,997 |  |  |  | 9,444 |  |  |
Total Losses |  |  |  |  |  |  |  |  |  |  | 598 |
Impaired Loans [Member] | Commercial Real Estate Portfolio Segment [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Total at Fair Value |  |  |  |  |  |  |  |  |  |  |  |
Impaired Loans [Member] | Commercial Real Estate Portfolio Segment [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Total at Fair Value |  |  |  |  |  |  |  |  |  |  |  |
Impaired Loans [Member] | Commercial Real Estate Portfolio Segment [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Total at Fair Value | 21,997 |  |  |  | 21,997 |  |  |  | 9,444 |  |  |
Impaired Loans [Member] | Residential Mortgage and Equity Lines Portfolio Segment [Member] |  |  |  |  |  |  |  |  |  |  |  |
Total at Fair Value | 10,790 |  |  |  | 10,790 |  |  |  | 11,679 |  |  |
Total Losses |  |  |  |  |  |  |  |  |  |  | 146 |
Impaired Loans [Member] | Residential Mortgage and Equity Lines Portfolio Segment [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Total at Fair Value |  |  |  |  |  |  |  |  |  |  |  |
Impaired Loans [Member] | Residential Mortgage and Equity Lines Portfolio Segment [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Total at Fair Value |  |  |  |  |  |  |  |  |  |  |  |
Impaired Loans [Member] | Residential Mortgage and Equity Lines Portfolio Segment [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Total at Fair Value | 10,790 |  |  |  | 10,790 |  |  |  | 11,679 |  |  |
Other Real Estate Owned [Member] |  |  |  |  |  |  |  |  |  |  |  |
Total at Fair Value | 10,639 | [1] |  |  | 10,639 | [1] |  |  | 10,378 | [2] |  |
Total Losses | 405 | [1] | (206) | [1] | 654 | [1] | 9 | [1] | 9 | [2] | 404 | [2]
Other Real Estate Owned [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Total at Fair Value |  | [1] |  |  |  | [1] |  |  |  | [2] |  |
Other Real Estate Owned [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Total at Fair Value | 6,317 | [1] |  |  | 6,317 | [1] |  |  | 6,006 | [2] |  |
Other Real Estate Owned [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Total at Fair Value | 4,322 | [1] |  |  | 4,322 | [1] |  |  | 4,372 | [2] |  |
Equity Investments [Member] |  |  |  |  |  |  |  |  |  |  |  |
Total at Fair Value | 3,023 |  |  |  | 3,023 |  |  |  | 3,667 |  |  |
Total Losses | 12 |  | $ 187 |  | 365 |  | $ 419 |  | 976 |  | $ 553 |
Equity Investments [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Total at Fair Value |  |  |  |  |  |  |  |  |  |  |  |
Equity Investments [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Total at Fair Value |  |  |  |  |  |  |  |  |  |  |  |
Equity Investments [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Total at Fair Value | $ 3,023 |  |  |  | $ 3,023 |  |  |  | $ 3,667 |  |  |
[1] | Other real estate owned balance of $18.1 million in the condensed consolidated balance sheet is net of estimated disposal costs.
[2] | Other real estate owned balance of $20.1 million in the condensed consolidated balance sheet is net of estimated disposal costs.

X
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