Loan Payable (Narrative) (Details) - USD ($)	3 Months Ended
Jul. 31, 2019	Jul. 10, 2019	Apr. 30, 2019	Oct. 10, 2018
Loan payable	$ 3,000,000		$ 3,000,000
Interest expense	$ 60,493
Wesley Clover International Corporation And Kmb Trac Two Holdings Ltd [Member] \| Maximum [Member]
Loan payable		$ 5,000,000		$ 3,000,000
Debt instrument, interest rate				8.00%

Contractual interest rate for funds borrowed, under the debt agreement.

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Amount of the cost of borrowed funds accounted for as interest expense for debt.

+ References

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Including the current and noncurrent portions, aggregate carrying value as of the balance sheet date of loans payable (with maturities initially due after one year or beyond the operating cycle if longer).

+ References

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