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Rental Equipment (Tables)
 12 Months Ended
Sep. 30, 2013
Rental Equipment

Rental equipment consisted of the following (in thousands):

 

 

AS OF SEPTEMBER 30,

 

 

2013

 

 

2012

 

Rental equipment, primarily geophones and related products             

$

  50,878

  

 

$

  39,766

  

Accumulated depreciation             

 

(13,970

) 

 

 

(11,913

) 

 

$

  36,908

  

 

$

  27,853