Subsequent Event	9 Months Ended
Sep. 30, 2021
Subsequent Event [Abstract]
Subsequent Event	12. Subsequent Event On October 13, 2021 the Company completed a public offering of 26,666,648 shares of its common stock and warrants to purchase 13,333,324 shares of its common stock at a combined offering price of $0.85 per share of common stock and one-half of a warrant to purchase one share of common stock. The warrants have an exercise price of $0.85 per share of common stock, are exercisable immediately, and will expire five years from the date of issuance. Proceeds from the public offering, net of underwriting discounts, commissions and offering expenses were approximately $21.1 million.

The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-URI http://asc.fasb.org/topic&trid=2122774

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6842918&loc=SL6314017-165662

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