Annual report pursuant to Section 13 and 15(d)

Organization and Summary of Significant Accounting Policies (Details 1)

v3.23.1
Organization and Summary of Significant Accounting Policies (Details 1) - USD ($)
$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Accounting Policies [Abstract]      
Cash and cash equivalents $ 2,937 $ 6,037  
Restricted cash 196 295  
Cash, cash equivalents and restricted cash as shown in the statements of cash flows $ 3,133 $ 6,332 $ 5,413