Note 20 - Fair Value Measurements (Details Textual) - USD ($) |
6 Months Ended | |
|---|---|---|
Jun. 30, 2016 |
Dec. 31, 2015 |
|
| Special Mention Or Worse [Member] | ||
| Collateral Dependent Loans Amount At Which All Loans Are Tested | $ 1,500,000 | |
| Foreclosed Assets Not Covered By FDIC Loss Share [Member] | ||
| Real Estate Acquired Through Foreclosure | $ 30,500,000 | $ 44,900,000 |
| Commercial and Residential Real Estate Collateral [Member] | Minimum [Member] | ||
| Fair Value Percentage Of Collateral Discount | 10.00% | |
| Commercial and Residential Real Estate Collateral [Member] | Maximum [Member] | ||
| Fair Value Percentage Of Collateral Discount | 40.00% | |
| Collateral Dependent Loans [Member] | ||
| Impaired Financing Receivable, Related Allowance | $ 2,350,000 | 1,136,000 |
| Real Estate Acquired Through Foreclosure | 30,529,000 | 44,820,000 |
| Impaired Financing Receivable, Related Allowance | $ 3,149,000 | $ 2,831,000 |