XML 64 R54.htm IDEA: XBRL DOCUMENT v3.22.2
REVENUE FROM CONTRACTS WITH CUSTOMERS - NARRATIVE (Details) - USD ($)
$ in Thousands
9 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Sep. 30, 2021
Disaggregation of Revenue [Line Items]      
Contract with customer, liability, current $ 1,145   $ 455
Contract with customer, liability, revenue recognized 342 $ 978  
Revenue, remaining performance obligation (backlog) $ 7,490    
Percentage anticipated to be recognized in next 12 months 35.00%    
Capitalized contract cost net, preconstruction $ 228   $ 326
Minimum      
Disaggregation of Revenue [Line Items]      
Contract receivable retainage percentage 5.00%    
Maximum      
Disaggregation of Revenue [Line Items]      
Contract receivable retainage percentage 10.00%