Quarterly report pursuant to Section 13 or 15(d)

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

v3.7.0.1
Fair Value Measurements - Warrant Derivative Liability (Narrative) (Details) - Warrants With Price Protection [Member]
Jan. 31, 2017
$ / shares
shares
Number of warrants containing price protection | shares 62,500
Redemption value | $ / shares $ 0.84