Quarterly report pursuant to Section 13 or 15(d)

Schedule of Fair Value Measurement Hierarchy of Derivative Liability (Details)

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Schedule of Fair Value Measurement Hierarchy of Derivative Liability (Details) - Common Stock Warrants [Member] - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Beginning balance $ (1,238) $ (220)
Issuance of derivatives   (6,328)
Change in fair value 225 1,750
Exercise of warrants 195 3,197
Other, net   1
Ending balance $ (818) $ (1,600)