Consolidated Statements of Operations and Comprehensive Loss (Unaudited) - USD ($)	3 Months Ended		6 Months Ended
	Oct. 31, 2017	Oct. 31, 2016	Oct. 31, 2017	Oct. 31, 2016
Operating Expenses:
General and administration	$ 192,274	$ 25,253	$ 341,751	$ 34,868
Research and development	213,165		399,990
Loss from operations	(405,439)	(25,253)	(741,741)	(34,868)
Other expense:
Interest and financing expense	(143,030)		(197,280)
Total other expense	(143,030)		(197,280)
Net loss before non-controlling interest	(548,469)	(25,253)	(939,021)	(34,868)
Net loss attributable to non-controlling interest				7
Net loss attributable to REGI U.S., Inc.	$ (548,469)	$ (25,253)	$ (939,021)	$ (34,861)
Loss per share – basic and diluted	$ (0.01)	$ 0.00	$ (0.01)	$ 0
Weighted average number of common shares outstanding – basic and diluted	84,932,860.05	49,329,670	84,688,622	49,329,670
Comprehensive loss:
Net loss	$ (548,469)	$ (25,253)	$ (939,021)	$ (34,868)
Translation adjustments		6,419		14,361
Comprehensive loss	(548,469)	(18,834)	(939,021)	(20,507)
Comprehensive loss attributable to non-controlling interest		(18,964)		(46,071)
Comprehensive loss attributable to REGI U.S., Inc.	$ (548,469)	$ (37,798)	$ (939,021)	$ (66,578)