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, 2020
Dec. 31, 2019
Mar. 31, 2019
Dec. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]        
Cash and cash equivalents $ 7,097 $ 9,107 $ 13,638  
Restricted cash 501 501 0  
Total cash and restricted cash shown in the statement of cash flows $ 7,598 $ 9,608 $ 13,638 $ 12,935