XML 63 R53.htm IDEA: XBRL DOCUMENT v3.20.2
Note J - Commitments and Contingencies (Details Textual) - USD ($)
3 Months Ended
Jul. 31, 2020
Jul. 31, 2019
Operating Lease, Percent of Facilities Leased 85.00%  
Operating Lease, Expense $ 2,000,000.0 $ 1,700,000
Operating Lease, Weighted Average Discount Rate, Percent 4.34%  
Letters of Credit Outstanding, Amount $ 250,000  
Minimum [Member] | Dealership Leases [Member]    
Lessee, Operating Lease, Term of Contract (Year) 3 years  
Maximum [Member] | Dealership Leases [Member]    
Lessee, Operating Lease, Term of Contract (Year) 5 years