LIQUIDITY AND FINANCIAL CONDITION	6 Months Ended
Jun. 30, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
LIQUIDITY AND FINANCIAL CONDITION	2. LIQUIDITY AND FINANCIAL CONDITION As of June 30, 2021, the Company had cash and cash equivalents of $105.4 million, working capital of $127.9 million and total stockholders’ equity of $231.4 million. In the past, the Company financed its operations principally through issuances of convertible debt, promissory notes and equity securities. During the six months ended June 30, 2021, the Company continued to strengthen its liquidity and financial condition through additional equity financing. For the six months ended June 30, 2021, the Company sold an aggregate of 27.9 million shares of common stock pursuant to the 2021 ATM Offering for gross proceeds of $144.0 million. The Company believes its current cash on hand is sufficient to meet its operating and capital requirements for at least the next twelve months from the date these financial statements are issued.

The entire disclosure when substantial doubt is raised about the ability to continue as a going concern. Includes, but is not limited to, principal conditions or events that raised substantial doubt about the ability to continue as a going concern, management's evaluation of the significance of those conditions or events in relation to the ability to meet its obligations, and management's plans that alleviated or are intended to mitigate the conditions or events that raise substantial doubt about the ability to continue as a going concern.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 40
-URI http://asc.fasb.org/subtopic&trid=51888271

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