Significant accounting policies (Details Narrative)	6 Months Ended	12 Months Ended
Dec. 31, 2020 Segment shares	Jun. 30, 2020 shares
Property, Plant and Equipment [Line Items]
Number of operating segment \| Segment	1
Number of reporting segment \| Segment	1
Stock Options [Member]
Property, Plant and Equipment [Line Items]
Anti-dilutive securities excluded from earnings per share	8,015,159	7,580,159
Warrants [Member]
Property, Plant and Equipment [Line Items]
Anti-dilutive securities excluded from earnings per share	95,777,806	37,844,404
Broker Options [Member]
Property, Plant and Equipment [Line Items]
Anti-dilutive securities excluded from earnings per share	3,239,907
Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of equipment	3 years
Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of equipment	10 years

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257

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+ References

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=123359005&loc=d3e8672-108599

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