Quarterly report pursuant to Section 13 or 15(d)

ORGANIZATION AND BUSINESS - Cash, Cash Equivalents and Restricted Cash (Details)

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ORGANIZATION AND BUSINESS - Cash, Cash Equivalents and Restricted Cash (Details) - USD ($)
$ in Thousands
Mar. 31, 2022
Dec. 31, 2021
Mar. 31, 2021
Dec. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]        
Cash and cash equivalents $ 2,439 $ 1,375 $ 5,165  
Restricted cash 0   501  
Total cash and restricted cash shown in the statements of cash flows $ 2,439 $ 1,375 $ 5,666 $ 4,525