Supplementary Statement of Cash Flows Information - Schedule of Supplementary Statement of Cash Flows Information (Detail) - USD ($)	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Supplemental Cash Flow Information [Abstract]
Series B Preferred Stock common stock dividend (note 6)	$ 8,616	$ 80,431
Non-cash issue costs (note 6)	182,257	52,899
Issue costs in accounts payable (note 6)		64,432
Deferred costs in accounts payable (note 3)	59,944
Warrants issued as deferred costs (notes 3 and 11)	93,701
Reclassification of derivative liability to equity (note 5)		492,884
Conversion of Series B Preferred Stock to common stock (note 6)	174,407	1,447,576
Income taxes paid
Interest paid