Note 7 - Property, Plant and Equipment (Details Textual) - USD ($) $ in Millions |
1 Months Ended | 2 Months Ended | 3 Months Ended |
|---|---|---|---|
Dec. 05, 2018 |
Jan. 31, 2019 |
Jan. 31, 2018 |
|
| Depreciation, Total | $ 2.1 | $ 3.5 | $ 4.0 |
| X | ||||||||||
- Definition The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|