Basis of Presentation and Principles of Consolidation (Narrative) (Details) - USD ($)	3 Months Ended
Jul. 31, 2020	Apr. 30, 2020
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Accumulated deficit	$ 69,653,042	$ 69,677,656
Principle balance of loan repaid	$ 2,000,000
Increase in revenue	33.00%
Unused Portion Of Loan Principal	$ 3,000,000
Loan payable	209,035
Coronavirus Aid, Relief, and Economic Security Act (the "CARES Act") [Member] \| Bank of America [Member] \| Counterpath Limited Liability Company [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Loan payable	$ 209,035

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