Ë¿¹ÏÊÓƵ

Annual report pursuant to Section 13 and 15(d)

Fair Value Measurements - Warrant Derivative Liability (Narrative) (Details)

v3.19.2
Fair Value Measurements - Warrant Derivative Liability (Narrative) (Details)
Apr. 30, 2018
shares
Warrants With Price Protection [Member] Ìý
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Ìý
Number of warrants containing price protection 62,500