XML 64 R52.htm IDEA: XBRL DOCUMENT v3.22.2.2
Summary of depreciation expense: (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Property, Plant and Equipment [Abstract]        
Depreciation expense $ 3,942,000 $ 265,000 $ 10,229,000 $ 711,000