Quarterly report pursuant to Section 13 or 15(d)

Cash, Cash Equivalents, Restricted Cash and Marketable Securities (Details Narrative)

v3.21.2
Cash, Cash Equivalents, Restricted Cash and Marketable Securities (Details Narrative) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Dec. 31, 2020
Cash and Cash Equivalents [Abstract]          
Marketable securities, unrealized gain loss $ 53 $ 114 $ 230 $ 367  
Net accumulated unrealized gain $ 2   $ 2   $ 228