XML 51 R41.htm IDEA: XBRL DOCUMENT v3.21.2
REVENUES - Other revenues (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Oct. 31, 2021
Oct. 31, 2020
Oct. 31, 2021
Oct. 31, 2020
Other revenues        
Sale of buildings $ 6,750   $ 6,750  
Oil and gas royalties 40 $ 25 175 $ 36
Public improvement district reimbursements 15 69 239 244
Private infrastructure reimbursement covenants 31 245 83 378
Miscellaneous other revenues 115 189 610 589
Other Revenue, Net $ 6,951 $ 528 $ 7,857 $ 1,247