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Inventories (Tables)
 6 Months Ended
Jun. 30, 2017
Inventory Disclosure [Abstract]  
Schedule of Inventory, Current [Table Text Block]
 

 

 

 

 

 
 

June 30

2017

  

December 31

2016

In thousands

 

Raw materials

$

1,248

 

$

1,245

Work-in-progress

  

510

    

410

Finished goods

 

324

 

 

238

Total Inventory

$

2,082

 

$

1,893