Stockholders' deficit - (Details 1)	Mar. 31, 2022 $ / shares shares
Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items]
Warrants outstanding	611,140,006
Warrants and Rights Outstanding, Term	3 years 5 months 15 days
Warrants exercisable	611,140,006
Weighted average exercise price, Warrants outstanding \| $ / shares	$ 0.0029154
Weighted average exercise price, Warrants exercisable \| $ / shares	$ 0.0029154
Excercise 1 [Member]
Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items]
Warrants outstanding	326,286,847
Warrants and Rights Outstanding, Term	3 years 3 months 10 days
Warrants exercisable	326,286,847
Excercise 2 [Member]
Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items]
Warrants outstanding	276,565,659
Warrants and Rights Outstanding, Term	3 years 9 months 7 days
Warrants exercisable	276,565,659
Excercise 3 [Member]
Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items]
Warrants outstanding	8,287,500
Warrants and Rights Outstanding, Term	3 months 7 days
Warrants exercisable	8,287,500

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- References

No definition available.

+ Details

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- References

No definition available.

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- Definition

Exercise price per share or per unit of warrants or rights outstanding.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI https://asc.fasb.org/extlink&oid=126973232&loc=d3e21475-112644

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

Period between issuance and expiration of outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

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