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Other current assets (Tables)
 12 Months Ended
Dec. 31, 2012
Other current assets [Abstract]  
Other Current Assets
Other current assets consist primarily of prepayments of items such as taxes and licenses, insurance and prepaid rent.  It also includes inventories and other amounts owed to the Company.  As of December 31, other current assets consist of the following:
 
 
(in thousands)
 
 
 
2012
  
2011
 
Due from equipment sales
 
$
841
  
$
2,197
 
Income tax receivable
  
-
   
514
 
Other prepaid taxes
  
1,306
   
1,240
 
Prepaid insurance
  
1,374
   
913
 
Prepaid rent
  
442
   
327
 
Prepaid licenses and permits
  
1,519
   
1,543
 
Inventory and other
  
2,358
   
1,134
 
Other current assets
 
$
7,840
  
$
7,868