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Inventory (Tables)
3 Months Ended
Dec. 31, 2018
Inventory Disclosure [Abstract]  
Schedule of inventory

Inventory consists of the following:

 

    December 31,
2018
    September 30,
2018
 
Component parts   $ 3,561     $ 3,647  
Finished goods     1,535       1,563  
Total inventories   $ 5,096     $ 5,210