Annual report pursuant to Section 13 and 15(d)

Property and Equipment Schedule of Property and Equipment (Details)

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Property and Equipment Schedule of Property and Equipment (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross $ 21,248 $ 20,365
Less accumulated depreciation and amortization (15,829) (14,399)
Total property, plant & equipment, net 5,419 5,966
Land and land improvements
   
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross 1,096 1,096
Building and building improvements
   
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross 2,961 2,955
Manufacturing equipment
   
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross 5,643 5,610
Development fixtures and equipment
   
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross 693 693
Data equipment and furniture
   
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross 8,693 7,849
Leasehold improvements
   
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross $ 2,162 $ 2,162