INTERIM CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($)	3 Months Ended
	Jul. 31, 2020	Jul. 31, 2019
Cash flows used in operating activities:
Net income (loss) for the period	$ 24,614	$ (929,723)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Bad debt expense	66,766	39,321
Deferred lease inducements		(4,118)
Depreciation and amortization	20,878	19,982
Operating lease expense	110,771	138,277
Unrealized foreign exchange loss	270,520	176,916
Stock-based compensation	70,183	68,341
Change in fair value of derivative instruments	(165,619)	(643)
Changes in assets and liabilities:
Accounts payable and accrued liabilities	(1,272)	(172,266)
Accounts receivable	520,243	165,235
Deferred sales commission costs	8,734	(12,820)
Prepaid expenses and other current assets	26,946	50,441
Accrued warranty	(1,201)	(3,462)
Operating lease liabilities	(106,764)	(127,420)
Operating lease deposits	(912)
Unearned revenue	159,999	(40,216)
Other current liabilities		1,647
Net cash provided by (used in) operating activities	1,003,886	(630,508)
Cash flows used in investing activities:
Purchases of equipment	(17,038)	(17,140)
Purchases of intangibles	(2,580)	(2,713)
Net cash used in investing activities	(19,618)	(19,853)
Cash flows provided by financing activities:
Net proceeds from issuance of common stock	996,462	5,263
Proceeds received from loan payable	209,035
Repayment of related party loan payable	(2,000,000)
Net cash provided by financing activities	(794,503)	5,263
Foreign exchange effect on cash	51,185	6,593
Increase (decrease) in cash	240,950	(638,505)
Cash, beginning of the period	2,433,266	1,862,458
Cash, end of the period	2,674,216	1,223,953
Cash paid for:
Interest		40,110
Taxes	$ 0	$ 0