XML 46 R34.htm IDEA: XBRL DOCUMENT v3.8.0.1
Legal, Environmental and Other Contingencies - Schedule of Maturities (Details) - USD ($)
$ in Thousands
Dec. 31, 2017
Sep. 30, 2017
Environmental post-closure monitoring and maintenance activities $ 633 $ 633
Long Term Obligations    
Maturities of long-term obligations (discounted)    
2019 54  
2020 52  
2021 60  
2022 50  
2023 and thereafter 315  
Long-term obligations (less current portion) $ 531