Quarterly report pursuant to Section 13 or 15(d)

Summary of significant accounting policies - Revenue Receivable (Details)

v3.22.4
Summary of significant accounting policies - Revenue Receivable (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Summary of significant accounting policies        
Credit losses $ 0   $ 0  
Bad debt expense $ 0 $ 0 $ 0 $ 0