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Subsequent Event (Details) - Subsequent Event [Member]	1 Months Ended
	Mar. 01, 2021	Jan. 20, 2021
March 2021 Public Offering [Member]
Subsequent Event (Details) [Line Items]
Public offering, description	the Company offered and sold to the public investors an aggregate of 29,277,866 shares of common stock and 14,638,933 warrants to purchase up to 14,638,933 shares of common stock in a firm commitment underwritten public offering for gross proceeds of approximately $21.9 million. The purchase price for each share of common stock and accompanying warrant sold in the offering was $0.75. The warrants are exercisable commencing on March 1, 2021 at an exercise price of $0.75 and will expire on March 1, 2026.
January 2021 Public Offering [Member]
Subsequent Event (Details) [Line Items]
Public offering, description		the Company offered and sold to certain institutional investors an aggregate of 26,181,818 shares of common stock and 26,181,818 warrants to purchase up to 26,181,818 shares of common stock in a best-efforts public offering for gross proceeds of approximately $14.4 million. The purchase price for each share of common stock and the corresponding warrant sold in the offering was $0.55. The warrants are exercisable commencing on January 20, 2021 at an exercise price of $0.55 and will expire on January 20, 2026.

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Description of stock transaction which may include details of the offering (IPO, private placement), a description of the stock sold, percentage of subsidiary's or equity investee's stock sold, a description of the investors and whether the stock was issued in a business combination.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 1B
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
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-Topic 810
-SubTopic 10
-Section 50
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-URI http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684

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