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Inventories
 12 Months Ended
Sep. 30, 2017
Inventory Disclosure [Abstract]  
Inventories

6. Inventories

Inventories consisted of the following (in thousands):

 

 

 

AS OF SEPTEMBER 30,

 

 

 

2017

 

 

2016

 

 

2015

 

 

 

 

 

 

 

(Restated)

 

 

(Restated)

 

Finished goods

 

$

33,690

 

 

$

40,260

 

 

$

55,074

 

Work in process

 

 

2,512

 

 

 

8,272

 

 

 

5,632

 

Raw material

 

 

70,099

 

 

 

65,682

 

 

 

70,769

 

Obsolescence reserve

 

 

(29,614

)

 

 

(9,674

)

 

 

(6,675

)

 

 

 

76,687

 

 

 

104,540

 

 

 

124,800

 

Less current portion

 

 

20,752

 

 

 

30,844

 

 

 

32,422

 

Non-current portion

 

$

55,935

 

 

$

73,696

 

 

$

92,378

 

 

Inventory obsolescence expense totaled approximately $21.5 million, $11.2 million and $3.9 million during fiscal years 2017, 2016 and 2015, respectively.  Raw materials include semi-finished goods and component parts which totaled approximately $43.2 million, $43.8 million and $48.4 million at September 30, 2017, 2016 and 2015, respectively.