Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity - Schedule of Stock Warrant Activity (Details)

v3.8.0.1
Stockholders' Equity - Schedule of Stock Warrant Activity (Details)
6 Months Ended
Oct. 31, 2017
$ / shares
shares
Equity [Abstract]  
Number of Warrants Outstanding, Beginning of Period 452,359
Recapitalization 33,415
Number of Warrants, Granted
Number of Warrants, Exercised
Number of Warrants, Forfeited
Number of Warrants, Cancelled
Number of Warrants Outstanding, End of Period 485,774
Warrants exercisable at end of period 485,774
Warrants expected to vest
Weighted Average Exercise Price of Warrants Outstanding, Beginning of Period | $ / shares $ 2.64
Weighted Average Exercise Price Recapitalization 32.61
Weighted Average Exercise Price, Granted | $ / shares
Weighted Average Exercise Price, Exercised | $ / shares
Weighted Average Exercise Price, Forfeited | $ / shares
Weighted Average Exercise Price, Cancelled | $ / shares
Weighted Average Exercise Price of Warrants Outstanding, End of Period | $ / shares 4.70
Weighted Average Exercise Price, exercisable at end of period | $ / shares 4.70
Weighted Average Exercise Price, expected to vest | $ / shares
Weighted average fair value of warrants granted during the period | $ / shares
Weighted Average Remaining Contractual Life in Years, Beginning of Period 4 years 2 months 23 days
Recapitalization 10 months 25 days
Weighted Average Remaining Contractual Life in Years, End of Period 3 years 6 months 18 days