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Other income (Tables)
 6 Months Ended
Jun. 30, 2022
Component of Operating Income [Abstract]  
Schedule of other income
Other income consisted of the following for the three and six months ended June 30, 2022 and 2021:
Three Months Ended June 30,Six Months Ended June 30,
2022202120222021
Interest and other income$21,657 $13,053 $58,650 $29,843 
Management fees10,179 1,736 20,376 3,519 
Proceeds from unsecured claims39,352 192,655 39,352 192,655 
$71,188 $207,444 $118,378 $226,017