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Inventories
12 Months Ended
Sep. 30, 2014
Inventory Disclosure [Abstract]  
Inventories

6. Inventories

Inventories consisted of the following (in thousands):

 

 

AS OF SEPTEMBER 30,

 

 

2014

 

 

2013

 

Finished goods and sub-assemblies

$

42,473

  

 

$

44,391

  

Work in progress

 

28,582

  

 

 

25,156

  

Raw materials

 

82,599

  

 

 

86,933

  

Obsolescence reserve

 

(7,764

 

 

(6,932

 

$

145,890

  

 

$

149,548

  

Inventory obsolescence expense was approximately $2.6 million, $0.2 million and $1.8 million during fiscal years 2014, 2013 and 2012, respectively.