XML 50 R40.htm IDEA: XBRL DOCUMENT v3.22.2
Rental Income - Additional information (Detail) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Leases [Abstract]        
Lease income $ 198,000 $ 396,000 $ 198,000 $ 396,000