SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - NET LOSS PER SHARE (Details) - 2020 Pre-Funded Warrant - 2020 Public Offering of Common Stock and Warrants	May 27, 2020 $ / shares shares
Warrant to purchase common stock, shares \| shares	8,335,239
Warrant exercise price \| $ / shares	$ 0.001

Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=123467817&loc=d3e21475-112644

Name:	us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant