XML 42 R32.htm IDEA: XBRL DOCUMENT v3.10.0.1
Supporting Financial Information - Intangible Assets (Details) - USD ($)
$ in Thousands
 3 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Sep. 30, 2018
Finite-Lived Intangible Assets [Line Items]      
Intangible assets, gross $ 17,623   $ 17,623
Total accumulated amortization (4,699)   (4,258)
Intangible assets, net $ 12,924   13,365
Estimated useful live of intangible assets 10 years    
Amortization expense of intangible assets $ 400 $ 400  
Customer contracts and related customer relationships      
Finite-Lived Intangible Assets [Line Items]      
Intangible assets, gross 16,626   16,626
Total accumulated amortization (4,434)   (4,018)
Covenants not to compete      
Finite-Lived Intangible Assets [Line Items]      
Intangible assets, gross 480   480
Total accumulated amortization (128)   (116)
Trade name      
Finite-Lived Intangible Assets [Line Items]      
Intangible assets, gross 517   517
Total accumulated amortization $ (137)   $ (124)