Note 4 - Fair Value Measurement - Reconciliation of Fair Value Measurement (Details) - USD ($) |
12 Months Ended | |
|---|---|---|
Oct. 31, 2018 |
Oct. 31, 2017 |
|
| Beginning balance | $ 968,783 | |
| Fair value of contingent earnout liability initially recorded in connection with Camfaud acquisition | 908,266 | |
| Change in fair value of contingent earnout liability included in operating expenses | 526,817 | |
| Change fair value due to foreign currency | (37,523) | 60,517 |
| Ending balance | $ 1,458,077 | $ 968,783 |
| X | ||||||||||
- Definition Amount of gain (loss) recognized in income from liability measured at fair value on recurring basis using unobservable input (level 3). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of gain (loss) recognized in other comprehensive income (OCI) from liability measured at fair value on recurring basis using unobservable input (level 3). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of purchases of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Fair value of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|