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Other Assets (Tables)
 3 Months Ended
Dec. 31, 2018
Other Assets, Noncurrent [Abstract]  
Schedule of other assets

Other assets consist of the following:

 

    December 31,
2018		     September 30,
2018		  
Pension surplus   $ 3,252     $ 5,257  
Long term receivables     1,975       2,209  
Long term prepaid expenses and other assets     3,987       4,648  
    $ 9,214     $ 12,114