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Inventories
6 Months Ended
Jun. 30, 2016
Inventory Disclosure [Abstract]  
Inventories

6. Inventories

Inventories consisted of the following at June 30, 2016 (unaudited) and December 31, 2015 (in thousands):  

 

 

June 30, 2016

 

 

December 31, 2015

 

 

(in thousands)

 

Raw materials

$

650

 

 

$

594

 

Work-in-process

 

516

 

 

 

791

 

 

 

1,166

 

 

 

1,385

 

Less: allowance

 

(73

)

 

 

(60

)

Total inventories

$

1,093

 

 

$

1,325