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Note 11 - Fair Value Measurements - Financial Assets and Liabilities Measured On a Non-recurring Basis (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2017 | Jun. 30, 2016 | Dec. 31, 2016 | Dec. 31, 2015
Total Losses | $ 875 |  | $ 1,155 |  | $ 2,124 |  | $ 1,392 |  | $ 1,307 |  | $ 2,507 |
Total at Fair Value | 41,164 |  |  |  | 41,164 |  |  |  | 37,981 |  |  |
Fair Value, Inputs, Level 1 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Total at Fair Value |  |  |  |  |  |  |  |  |  |  |  |
Fair Value, Inputs, Level 2 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Total at Fair Value | 6,482 |  |  |  | 6,482 |  |  |  | 6,006 |  |  |
Fair Value, Inputs, Level 3 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Total at Fair Value | 34,682 |  |  |  | 34,682 |  |  |  | 31,975 |  |  |
Impaired Loans [Member] |  |  |  |  |  |  |  |  |  |  |  |
Total Losses | 497 |  | 945 |  | 1,523 |  | 945 |  | 322 |  | 1,550 |
Total at Fair Value | 27,120 |  |  |  | 27,120 |  |  |  | 23,936 |  |  |
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 | 27,120 |  |  |  | 27,120 |  |  |  | 23,936 |  |  |
Impaired Loans [Member] | Commercial Portfolio Segment [Member] |  |  |  |  |  |  |  |  |  |  |  |
Total Losses | 497 |  |  |  | 1,273 |  |  |  | 322 |  | 806 |
Total at Fair Value | 888 |  |  |  | 888 |  |  |  | 2,813 |  |  |
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 | 888 |  |  |  | 888 |  |  |  | 2,813 |  |  |
Impaired Loans [Member] | Commercial Real Estate Portfolio Segment [Member] |  |  |  |  |  |  |  |  |  |  |  |
Total Losses |  |  | 945 |  | 250 |  | 945 |  |  |  | 598 |
Total at Fair Value | 14,915 |  |  |  | 14,915 |  |  |  | 9,444 |  |  |
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 | 14,915 |  |  |  | 14,915 |  |  |  | 9,444 |  |  |
Impaired Loans [Member] | Residential Mortgage and Equity Lines Portfolio Segment [Member] |  |  |  |  |  |  |  |  |  |  |  |
Total Losses |  |  |  |  |  |  |  |  |  |  | 146 |
Total at Fair Value | 11,317 |  |  |  | 11,317 |  |  |  | 11,679 |  |  |
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 | 11,317 |  |  |  | 11,317 |  |  |  | 11,679 |  |  |
Other Real Estate Owned [Member] |  |  |  |  |  |  |  |  |  |  |  |
Total Losses | 212 | [1] | 88 | [1] | 249 | [1] | 216 | [1] | 9 | [2] | 404 | [2]
Total at Fair Value | 10,804 | [1] |  |  | 10,804 | [1] |  |  | 10,378 | [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 | 6,482 | [1] |  |  | 6,482 | [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 Losses | 166 |  | $ 122 |  | 352 |  | $ 231 |  | 976 |  | $ 553 |
Total at Fair Value | 3,240 |  |  |  | 3,240 |  |  |  | 3,667 |  |  |
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 | $ 3,240 |  |  |  | $ 3,240 |  |  |  | $ 3,667 |  |  |
[1] | Other real estate owned balance of $19.2 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 Consolidated Balance Sheets is net of estimated disposal costs.

X
- Definition Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=68055307&loc=d3e2420-110228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 + Details
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- Definition This element represents the aggregate of the assets reported on the balance sheet at period end measured at fair value on a nonrecurring basis by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. + References No definition available. + Details
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