Subsequent Events	9 Months Ended
Sep. 30, 2020
Subsequent Events [Abstract]
Subsequent Events	10. SUBSEQUENT EVENTS Subsequent to September 30, 2020, during multiple trading days through October 8, 2020, the Company sold an aggregate of 72,274 shares of common stock under its ATM facility at an average gross sale price of $3.1456 per share, resulting in proceeds of $0.2 million. Subsequent to September 30, 2020, through October 26, 2020, the Company sold 300,000 shares of common stock under its purchase agreement with Lincoln Park at a weighted average price of $2.77 per share, resulting in proceeds of $0.8 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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