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Property, Plant, and Equipment
3 Months Ended
Mar. 31, 2014
Property, Plant, and Equipment [Abstract]  
Property, Plant, and Equipment
(4)Property, Plant, and Equipment

Property, plant, and equipment consist of the following:

(in thousands)
 
March 31,
2014
  
December 31,
2013
 
Leaseholds
 
$
1,748
  
$
1,749
 
Furniture
  
957
   
957
 
Equipment
  
1,487
   
1,552
 
Enterprise hardware and software
  
2,009
   
2,143
 
Buildings and land
  
603
   
603
 
Property, plant and equipment, gross
  
6,804
   
7,004
 
Accumulated depreciation
  
(4,066
)
  
(3,935
)
Property, plant and equipment, net
 
$
2,738
  
$
3,069
 

Depreciation expense for the three months ended March 31, 2014 and 2013 was $0.2 million and $0.3 million, respectively.