Note 13 - Disclosure about Fair Value of Financial Instruments (Details Textual) - Impaired Loans [Member] |
12 Months Ended |
|---|---|
Dec. 31, 2016 | |
| Minimum [Member] | |
| Fair Value Assumptions, Discount on Appraisals of Collateral Securing Loan | 10.00% |
| Maximum [Member] | |
| Fair Value Assumptions, Discount on Appraisals of Collateral Securing Loan | 50.00% |