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Related Parties (Tables)
 3 Months Ended
Dec. 31, 2018
Related Party Transactions [Abstract]  
Schedule of related party transactions

We occupy office space leased by a company affiliated with our Executive Chairman and incur amounts monthly in maintenance expenses primarily for the lease of the office.

  

        Three Months Ended
December 31,		  
        2018     2017  
Hydra Management LLC   Selling, general and administrative expenses   $ (25 )   $ (86 )