Quarterly report pursuant to Section 13 or 15(d)

Leases (Schedule of Balance Sheet Information Related to Leases) (Details)

v3.19.2
Leases (Schedule of Balance Sheet Information Related to Leases) (Details) - USD ($)
Jul. 31, 2019
Apr. 30, 2019
Jul. 31, 2018
Operating leases      
Operating lease liabilities current $ 1,100,411 $ 500,000
Operating lease liabilities, long-term 7,095,695  
Total operating lease liabilities $ 8,196,106