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Property and Equipment
6 Months Ended
Jun. 30, 2011
Property and Equipment [Abstract]  
PROPERTY AND EQUIPMENT
(4) PROPERTY AND EQUIPMENT
                         
    Estimated              
    Depreciable     June 30,     December 31,  
    Lives (years)     2011     2010  
            (In thousands)  
Leasehold improvements
    3-10     $ 380     $ 370  
Automobiles
    4-6       384       382  
Computer and telecommunications equipment
    2-5       1,336       1,223  
Test equipment
    3-7       176       180  
Furniture and fixtures
    2-10       3,163       2,939  
 
                   
 
            5,439       5,094  
Less accumulated depreciation
            (4,045 )     (3,706 )
 
                   
Total property and equipment, net
          $ 1,394     $ 1,388