• Filing Date: 2019-07-11
  • Form Type: 10-K
  • Description: Annual report
v3.19.2
Loss per share (Narrative) (Details) - shares
12 Months Ended
Apr. 30, 2019
Apr. 30, 2018
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 1,249,940 1,140,432