Note 5 - Fair Value Measurement (Details Textual) - Camfaud [Member] - Earnout Payments [Member] - USD ($) $ in Millions |
Jul. 31, 2019 |
Oct. 31, 2018 |
Nov. 30, 2016 |
|---|---|---|---|
| Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High | $ 3.1 | ||
| Business Combination, Contingent Consideration, Liability, Total | $ 1.4 | $ 1.5 |
| X | ||||||||||
- Definition For contingent consideration arrangements recognized in connection with a business combination, this element represents an estimate of the high-end of the potential range (undiscounted) of the consideration which may be paid. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of liability recognized arising from contingent consideration in a business combination. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|