Quarterly report pursuant to Section 13 or 15(d)

operating leases for real estate locations (Details)

v3.21.4
operating leases for real estate locations (Details)
 6 Months Ended
Oct. 31, 2021
USD ($)
Operating Lease Location 1 [Member]  
Operating Lease, Expense $ 11,000
Operating Lease Location 2 [Member]  
Operating Lease, Expense 4,600
Operating Lease Location 3 [Member]  
Operating Lease, Expense 3,438
Operating Lease Location 4 [Member]  
Operating Lease, Expense 2,667
Operating Lease Location 5 [Member]  
Operating Lease, Expense 1,690
Operating Lease Location 6 [Member]  
Operating Lease, Expense $ 1,445