Summary of Tax Credit Carryforwards (Details)	Aug. 31, 2019 USD ($)
Canada [Member]
Investment tax credit carryforwards by expiration date	$ 1,233,000
United States [Member]
Investment tax credit carryforwards by expiration date	0
2029 and thereafter [Member] | Canada [Member]
Investment tax credit carryforwards by expiration date	1,233,000
2029 and thereafter [Member] | United States [Member]
Investment tax credit carryforwards by expiration date	$ 0