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Inventories
 9 Months Ended
Sep. 30, 2016
Inventory Disclosure [Abstract]  
Inventories

5.

Inventories

 

(Table only in thousands)

 

September 30,

2016

 

 

December 31,

2015

 

Raw materials

 

$

19,444

 

 

$

24,339

 

Work in process

 

 

4,290

 

 

 

6,443

 

Finished goods

 

 

2,077

 

 

 

2,717

 

Obsolescence allowance

 

 

(1,866

)

 

 

(990

)

 

 

$

23,945

 

 

$

32,509

 

 

Amounts credited to the allowance for obsolete inventory and charged to cost of sales amounted to $0.1 million and $0.2 million for the three-month periods ended September 30, 2016 and 2015, respectively, and $1.0 million and $0.5 million for the nine-month periods ended September 30, 2016 and 2015, respectively.