Quarterly report pursuant to Section 13 or 15(d)

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)

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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) - USD ($)
$ in Thousands
Jun. 30, 2020
Dec. 31, 2019
Jun. 30, 2019
Dec. 31, 2018
Cash And Cash Equivalents [Abstract]        
Cash and cash equivalents $ 1,032 $ 1,769 $ 2,947  
Restricted cash 7      
Total cash, cash equivalents and restricted cash shown in the consolidated statements of cash flows $ 1,039 $ 1,769 $ 2,947 $ 3,905