Quarterly report pursuant to Section 13 or 15(d)

General (Details) - Schedule of reconciliation of cash, cash equivalents, and restricted cash

v3.21.1
General (Details) - Schedule of reconciliation of cash, cash equivalents, and restricted cash - USD ($)
$ in Thousands
Mar. 31, 2021
Dec. 31, 2020
Mar. 31, 2020
Dec. 31, 2019
Schedule of reconciliation of cash, cash equivalents, and restricted cash [Abstract]        
Cash and cash equivalents $ 1,159 $ 1,500    
Restricted cash 630 1,180    
Total cash, cash equivalents, and restricted cash shown in the cash flow statement $ 1,789 $ 2,680 $ 3,510 $ 6,228