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SEGMENT AND GEOGRAPHIC INFORMATION - GEOGRAPHIC AREAS (Details) - USD ($)
$ in Thousands
12 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Geographic information    
Long-lived assets $ 15,875 $ 28,250
Total revenue (excluding gain on sale of investments and interest income) 17,479 28,017
United States    
Geographic information    
Long-lived assets 10,135 9,884
Total revenue (excluding gain on sale of investments and interest income) 8,237 6,924
Canada    
Geographic information    
Long-lived assets 5,740 18,366
Total revenue (excluding gain on sale of investments and interest income) $ 9,242 $ 21,093