Quarterly report pursuant to Section 13 or 15(d)

Leases (Details)

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Leases (Details) - USD ($)
3 Months Ended 6 Months Ended
Oct. 31, 2019
Oct. 31, 2019
May 01, 2019
Lessee Disclosure [Abstract]      
Lease expense $ 669,459 $ 1,245,880  
Right of use lease asset 7,953,283 7,953,283 $ 8,800,000
Cash paid for amounts included in operating lease liabilities $ 600,000 $ 1,100,000