Note 15 - Fair Value Measurements and Disclosures - Significant Unobservable Inputs (Details) - Fair Value, Inputs, Level 3 [Member] - USD ($)
$ in Thousands |
12 Months Ended |
Dec. 31, 2016 |
Dec. 31, 2015 |
| Third Party Appraisals, Sales Contracts, Broker Price Opinions [Member] | Other Real Estate [Member] |
|
|
| Fair value of asset |
$ 2,068
|
$ 3,965
|
| Third Party Appraisals, Sales Contracts, Broker Price Opinions [Member] | Other Real Estate [Member] | Minimum [Member] |
|
|
| Fair value discounts |
11.00%
|
11.00%
|
| Third Party Appraisals, Sales Contracts, Broker Price Opinions [Member] | Other Real Estate [Member] | Maximum [Member] |
|
|
| Fair value discounts |
35.00%
|
35.00%
|
| Third Party Appraisals, Sales Contracts, Broker Price Opinions [Member] | Other Real Estate [Member] | Weighted Average [Member] |
|
|
| Fair value discounts |
11.00%
|
16.00%
|
| Third Party Appraisals and Discounted Cash Flows [Member] | Impaired Loans [Member] |
|
|
| Fair value of asset |
$ 2,837
|
$ 3,695
|
| Third Party Appraisals and Discounted Cash Flows [Member] | Impaired Loans [Member] | Minimum [Member] |
|
|
| Fair value discounts |
0.00%
|
16.00%
|
| Third Party Appraisals and Discounted Cash Flows [Member] | Impaired Loans [Member] | Maximum [Member] |
|
|
| Fair value discounts |
100.00%
|
100.00%
|
| Third Party Appraisals and Discounted Cash Flows [Member] | Impaired Loans [Member] | Weighted Average [Member] |
|
|
| Fair value discounts |
33.00%
|
34.00%
|