SHARE CAPITAL (Details)				3 Months Ended		12 Months Ended
	Jun. 06, 2018 USD ($) $ / shares shares	Aug. 23, 2017 USD ($) Investor $ / shares shares	Apr. 28, 2016 USD ($)	Jul. 31, 2018 USD ($) $ / shares shares	Jul. 31, 2017 USD ($)	Apr. 30, 2017 USD ($)	Apr. 30, 2018 USD ($) $ / shares shares	Mar. 22, 2018 shares	Mar. 15, 2018 shares	Apr. 29, 2016 USD ($) $ / shares shares	Apr. 27, 2016 $ / shares shares
Common Stock [Abstract]
Common stock, shares authorized (in shares)				100,000,000			100,000,000
Common stock, par value (in dollars per share) | $ / shares				$ 0.001			$ 0.001
Preferred stock, shares authorized (in shares)				25,000,000			25,000,000
Preferred stock, par value (in dollars per share) | $ / shares				$ 0.001			$ 0.001
Preferred stock, shares issued (in shares)				0			0
Price per share (in dollars per share) | $ / shares		$ 0.01
Value of intangible assets | $				$ 0			$ 0
Shares issued (in shares)		7,000,000		6,500,000
Number of investors | Investor		34
Shares issued pursuant to direct public offering | $		$ 70,000
Treasury stock (in shares)								400,000	100,000
Common stock, shares issued (in shares)				38,900,090			21,500,000
Common stock, shares outstanding (in shares)				38,900,090			21,500,000
Deferred offering costs [Abstract]
Deferred offering costs against net offering proceeds | $				$ 747,518	$ 7,000
Quanta Acquisition Corp [Member]
Common Stock [Abstract]
Shares issued (in shares)	25,900,000
Treasury stock (in shares)				15,000,000
Common stock, cancelled (in shares)	15,000,000
Public Offering [Member]
Deferred offering costs [Abstract]
Deferred offering costs | $						$ 34,161
Deferred offering costs against net offering proceeds | $						$ 70,000
Private Placement [Member] | Quanta Acquisition Corp [Member]
Common Stock [Abstract]
Common stock, shares subscribed (in shares)	6,500,090
Common stock, purchase price (in dollars per share) | $ / shares	$ 0.20
Aggregate proceeds of common stock offering | $	$ 1,300,000
Deferred offering costs [Abstract]
Deferred offering costs | $				$ 0
Founder [Member]
Common Stock [Abstract]
Common stock, par value (in dollars per share) | $ / shares										$ 0.001	$ 0.001
Price per share (in dollars per share) | $ / shares										$ 0.001	$ 0.001
Share based compensation | $			$ 11,000
Value of intangible assets | $										$ 4,000
Common stock, shares issued (in shares)										4,000,000	11,000,000