Quarterly report pursuant to Section 13 or 15(d)

Components of Property, Plant and Equipment (Detail)

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Components of Property, Plant and Equipment (Detail) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2014
Dec. 31, 2013
Property Plant And Equipment [Line Items]    
Property, plant, and equipment gross, excluding land $ 8,670 $ 8,598
Accumulated depreciation and amortization (7,120) (6,971)
Property, plant, and equipment net, excluding land 1,550 1,627
Land 199 199
Property, plant, and equipment, net 1,749 1,826
Building
   
Property Plant And Equipment [Line Items]    
Property, plant and equipment, gross 256 256
Leasehold Improvements
   
Property Plant And Equipment [Line Items]    
Property, plant and equipment, gross 1,207 1,207
Equipment and Computers
   
Property Plant And Equipment [Line Items]    
Property, plant and equipment, gross 6,075 6,078
Furniture and Fixtures
   
Property Plant And Equipment [Line Items]    
Property, plant and equipment, gross 1,049 1,049
Construction in Progress
   
Property Plant And Equipment [Line Items]    
Property, plant and equipment, gross $ 83 $ 8