Annual report pursuant to Section 13 and 15(d)

Cash, Cash Equivalents, and Restricted Cash (Details)

v3.22.1
Cash, Cash Equivalents, and Restricted Cash (Details) - USD ($)
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Cash and Cash Equivalents [Abstract]      
Cash $ 23,137,000 $ 3,940,000  
Restricted cash 0 91,000  
Total cash and restricted cash 23,137,000 4,031,000 $ 362,000
Cash equivalents $ 0 $ 0