Quarterly report pursuant to Section 13 or 15(d)

Schedule of Cash, Cash Equivalents and Restricted Cash (Details)

v3.21.2
Schedule of Cash, Cash Equivalents and Restricted Cash (Details) - USD ($)
Sep. 30, 2021
Dec. 31, 2020
Sep. 30, 2020
Dec. 31, 2019
Cash and Cash Equivalents [Abstract]        
Cash and cash equivalents $ 24,922,760 $ 12,432,481 $ 7,051,000 $ 22,170,000
Restricted cash included in current/long term assets 250,000 336,000 386,000 586,000
Cash, cash equivalents and restricted cash in the statement of cash flows $ 25,173,000 $ 12,768,000 $ 7,437,000 $ 22,756,000