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Inventories
6 Months Ended
Jun. 30, 2013
Inventory Disclosure [Abstract]  
Inventories
4. Inventories

 

     June 30,     December 31,  
(dollars in thousands)    2013     2012  

Raw materials and subassemblies

   $ 4,933      $ 2,508   

Finished goods

     1,165        1,133   

Parts for resale

     689        684   

Obsolescence allowance

     (707     (427
  

 

 

   

 

 

 
   $ 6,080      $ 3,898   
  

 

 

   

 

 

 

Amounts (debited) credited to the allowance for obsolete inventory and charged to cost of sales amounted to $(2) and $26 for the three month periods ended June 30, 2013 and 2012, respectively, and $67 and $82 for the six month period ended June 30, 2013 and 2012, respectively.