Quarterly report pursuant to Section 13 or 15(d)

Property and Equipment (Schedule of Property and Equipment) (Details)

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Property and Equipment (Schedule of Property and Equipment) (Details) - USD ($)
Oct. 31, 2018
Apr. 30, 2018
Property, Plant and Equipment [Line Items]    
Property and equipment, gross $ 5,217,124 $ 4,182,526
Accumulated depreciation and amortization (1,450,025) (1,320,360)
Total property and equipment, net 3,767,099 2,862,166
Call Center Hardware [Member]    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross 166,051 140,509
Computer And Office Equipment [Member]    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross 294,419 230,810
Furniture and Fixtures [Member]    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross 1,271,536 932,454
Software [Member]    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross $ 3,485,118 $ 2,878,753