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Significant Accounting Policies (Tables)
12 Months Ended
Apr. 30, 2018
Accounting Policies [Abstract]  
Summary of the Inventory Values
Below is a summary of the inventory values at April 30, 2018 and 2017:
 
 
Fiscal 2018
 
Fiscal 2017
Fuel
$
75,817

 
$
60,833

Merchandise
165,851

 
140,811

Total inventory
$
241,668

 
$
201,644

Depreciation of Property and Equipment and Amortization of Capital Lease Assets
Depreciation of property and equipment and amortization of capital lease assets are computed principally by the straight-line method over the following estimated useful lives:
 
 
 
Buildings
25-40 years
Machinery and equipment
5-30 years
Leasehold interest in property and equipment
Lesser of term of lease or life of asset
Leasehold improvements
Lesser of term of lease or life of asset