Note 15 - Segmented Information (Details Textual)	6 Months Ended
Jan. 31, 2021 USD ($)	Jul. 31, 2020 USD ($)
Number of Reportable Segments	1
Long-Lived Assets	$ 85,704,749	$ 84,799,738
UNITED STATES
Long-Lived Assets	$ 58,196,798
Percentage of Long Term Assets	68.00%

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8672-108599

Name:	us-gaap_NumberOfReportableSegments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration