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Inventories (Tables)
6 Months Ended
Jun. 30, 2017
Inventory Disclosure [Abstract]  
Schedule of inventories

Inventories consist of the following:

 

(in thousands)

 

June 30, 2017

 

 

December 31, 2016

 

Raw materials

 

$

301

 

 

$

346

 

Work-in-process

 

 

560

 

 

 

214

 

Finished goods

 

 

179

 

 

 

100

 

Total inventories

 

$

1,040

 

 

$

660