6. COMMITMENTS AND CONTINGENCIES (Details Narrative) - USD ($)	12 Months Ended
Aug. 31, 2019	Aug. 31, 2018	Aug. 31, 2017
Commitments and Contingencies Disclosure [Abstract]
Rent expense	$ 584,000	$ 567,000	$ 509,600
Royalties expense	$ 195,828	$ 175,740	$ 139,551

Amount of expense related to royalty payments under a contractual arrangement such as payment for mineral and drilling rights and use of technology or intellectual property.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.3)
-URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227

Name:	us-gaap_RoyaltyExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration