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.

No definition available.

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- Definition

Value of input used to measure outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258

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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 http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258

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Schedule of Warrant Derivative Liabilities (Details)	Sep. 30, 2021 $ / shares	Dec. 31, 2020 $ / shares	Dec. 31, 2019
Measurement Input, Expected Term [Member] \| Strome Warrants [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants term	1 year 8 months 12 days	2 years 5 months 12 days	3 years 5 months 12 days
Measurement Input, Expected Term [Member] \| B. Riley Warrants [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants term	4 years 6 months	4 years 9 months 14 days	5 years 9 months 18 days
Measurement Input, Risk Free Interest Rate [Member] \| Strome Warrants [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants measurement input	0.28	0.13	1.62
Measurement Input, Risk Free Interest Rate [Member] \| B. Riley Warrants [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants measurement input	0.76	0.36	1.76
Measurement Input, Price Volatility [Member] \| Strome Warrants [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants measurement input	153.59	150.55	144.56
Measurement Input, Price Volatility [Member] \| B. Riley Warrants [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants measurement input	142.59	140.95	127.63
Measurement Input, Expected Dividend Rate [Member] \| Strome Warrants [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants measurement input	0	0	0.0
Measurement Input, Expected Dividend Rate [Member] \| B. Riley Warrants [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants measurement input	0	0	0.0
Transaction Date Closing Market [Member] \| Strome Warrants [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants measurement input	0.38	0.60
Transaction Date Closing Market [Member] \| B. Riley Warrants [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants measurement input	0.38	0.60
Measurement Input, Exercise Price [Member] \| Strome Warrants [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants measurement input	0.50	0.50
Measurement Input, Exercise Price [Member] \| B. Riley Warrants [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants measurement input	0.33	0.33