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

6. Inventories

 

Inventories consisted of the following at September 30, 2017 (unaudited) and December 31, 2016 (in thousands):  

 

 

September 30, 2017

 

 

December 31, 2016

 

Raw materials

$

595

 

 

$

513

 

Work-in-process

 

708

 

 

 

728

 

 

 

1,303

 

 

 

1,241

 

Less: allowance

 

(134

)

 

 

(60

)

Total inventories

$

1,169

 

 

$

1,181