Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements - Changes in Estimated Fair Value for Level 3 Classified Derivative Warrant Liability (Details)

v3.7.0.1
Fair Value Measurements - Changes in Estimated Fair Value for Level 3 Classified Derivative Warrant Liability (Details)
$ in Thousands
6 Months Ended
Apr. 30, 2017
USD ($)
Fair Value Disclosures [Abstract]  
Fair value at the beginning of period $ 70
Exchanged - January 18, 2017 (78)
Change in fair value 8
Fair value at the end of period