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Revenue and Revenue Recognition (Details Narrative) - Canada and Mexico [Member]
6 Months Ended
Nov. 30, 2019
USD ($)
Fiscal Year 2020 [Member]  
Disaggregation of Revenue [Line Items]  
Sales revenue $ 1,803,000
Fiscal Year 2019 [Member]  
Disaggregation of Revenue [Line Items]  
Sales revenue $ 291,000