SUBSEQUENT EVENT	6 Months Ended
Jun. 30, 2022
Subsequent Events [Abstract]
Subsequent Event	11. SUBSEQUENT EVENT On August 12, 2022, the Company filed with the SEC a prospectus supplement, dated August 12, 2022, to the 2021 Shelf Registration Statement pursuant to Rule 424(b) under the Securities Act of 1933, as amended, relating to the offer and sale of up to $150 million of shares of its common stock from time to time to or through the Sales Agents, pursuant to the Sales Agreement.

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 https://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 https://asc.fasb.org/extlink&oid=6842918&loc=SL6314017-165662

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