Quarterly report pursuant to Section 13 or 15(d)

Acquisition and Disposition - Schedule of Discontinued Operations (Details) (Parenthetical)

v3.19.1
Acquisition and Disposition - Schedule of Discontinued Operations (Details) (Parenthetical) - USD ($)
9 Months Ended 12 Months Ended
Jan. 31, 2019
Jan. 31, 2018
Apr. 30, 2018
Business Combinations [Abstract]      
Impairment charge $ 6,094,760 $ 6,094,760