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SEGMENT AND GEOGRAPHIC INFORMATION - GEOGRAPHIC AREAS (Details) - USD ($)
$ in Thousands
12 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Geographic information    
Long-lived assets $ 10,454 $ 15,875
Total revenue (excluding interest income) 13,241 17,479
United States    
Geographic information    
Long-lived assets 5,187 10,135
Total revenue (excluding interest income) 9,886 8,237
Canada    
Geographic information    
Long-lived assets 5,267 5,740
Total revenue (excluding interest income) $ 3,355 $ 9,242