Note 13 - Subsequent Events (Details Textual) $ in Millions |
Oct. 31, 2018
USD ($)
|
|---|---|
| Subsequent Event [Member] | |
| Derivative, Amount of Hedged Item | $ 380 |
| X | ||||||||||
- Definition Amount of hedged item in hedging relationship. Excludes hedged asset or liability. No definition available.
|
| X | ||||||||||
- Details
|