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Financial Statement Details (Tables)
12 Months Ended
Dec. 31, 2012
Financial Statement Details [Abstract]  
Summary of Marketable Securities

The Company’s portfolio of available-for-sale securities by contractual maturity consists of the following (in thousands):

 

                                         

December 31, 2012

  Maturity in
Years
    Amortized
Cost
    Gross
Unrealized
Gains
    Gross
Unrealized
Losses
    Estimated
Fair Value
 

Available-for-sale:

                                       

Government agency securities

    1 or less     $ 3,265     $ 1     $ 0     $ 3,266  

Municipal bonds

    1 or less       11,246       14       0       11,260  

Certificates of deposit

    1 or less       6,200       5       0       6,205  

Corporate debentures / bonds

    1 or less       17,330       3       0       17,333  
           

 

 

   

 

 

   

 

 

   

 

 

 

Total short-term marketable securities

            38,041       23       0       38,064  
           

 

 

   

 

 

   

 

 

   

 

 

 

Available-for-sale:

                                       

Certificates of deposit

    1 to 2       1,200       1       0       1,201  
           

 

 

   

 

 

   

 

 

   

 

 

 

Total long-term marketable securities

            1,200       1       0       1,201  
           

 

 

   

 

 

   

 

 

   

 

 

 
            $ 39,241     $ 24     $ 0     $ 39,265  
           

 

 

   

 

 

   

 

 

   

 

 

 

December 31, 2011

  Maturity in
Years
    Amortized
Cost
    Gross
Unrealized
Gains
    Gross
Unrealized
Losses
    Estimated
Fair Value
 

Available-for-sale:

                                       

Government agency securities

    1 or less     $ 6,913     $ 0     $ (1   $ 6,912  

Municipal bonds

    1 or less       8,390       0       (6     8,384  

Certificates of deposit

    1 or less       4,319       2       0       4,321  

Corporate debentures / bonds

    1 or less       8,615       0       (3     8,612  

Marketable equity securities

    1 or less       38       0       0       38  
           

 

 

   

 

 

   

 

 

   

 

 

 

Total short-term marketable securities

            28,275       2       (10     28,267  
           

 

 

   

 

 

   

 

 

   

 

 

 

Available-for-sale:

                                       

Government agency securities

    1 to 2       3,734       4       0       3,738  

Municipal bonds

    1 to 2       5,967       2       0       5,969  

Certificates of deposit

    1 to 2       3,797       0       (9     3,788  
           

 

 

   

 

 

   

 

 

   

 

 

 

Total long-term marketable securities

            13,498       6       (9     13,495  
           

 

 

   

 

 

   

 

 

   

 

 

 
            $ 41,773     $ 8     $ (19   $ 41,762  
           

 

 

   

 

 

   

 

 

   

 

 

 
Summary of inventories

Inventories consist of the following (in thousands):

 

                 
    December 31,  
    2012     2011  

Finished goods

  $ 26,776     $ 35,211  

Raw materials and components

    12,240       7,068  
   

 

 

   

 

 

 
    $ 39,016     $ 42,279  
   

 

 

   

 

 

 
Summary of Property and Equipment

Property and equipment consists of the following (in thousands):

 

                 
    December 31,  
    2012     2011  

Test equipment

  $ 53,368     $ 52,311  

Computer equipment and purchased software

    12,310       13,766  

Product tooling

    2,232       3,768  

Furniture and fixtures

    2,219       2,240  

Leasehold improvements

    4,802       5,628  
   

 

 

   

 

 

 
      74,931       77,713  

Less—accumulated depreciation and amortization

    (59,702     (59,217
   

 

 

   

 

 

 
    $ 15,229     $ 18,496  
   

 

 

   

 

 

 
Summary of accrued Expenses

Accrued expenses consist of the following (in thousands):

 

                 
    December 31,  
    2012     2011  

Royalties

  $ 4,349     $ 5,861  

Payroll and related expenses

    7,788       8,706  

Product warranty

    2,329       1,525  

Market development funds and price protection

    2,147       1,750  

Deferred rent

    573       1,135  

Professional fees

    1,549       1,213  

Deferred revenue

    4,630       1,060  

Other

    4,435       3,794  
   

 

 

   

 

 

 
    $ 27,800     $ 25,044  
   

 

 

   

 

 

 
Summary of accrued warranty obligations

Accrued warranty obligations consist of the following (in thousands):

 

                 
    2012     2011  

Warranty liability at beginning of period

  $ 1,525     $ 2,279  

Additions charged to operations

    6,261       2,642  

Deductions from liability

    (5,457     (3,396
   

 

 

   

 

 

 

Warranty liability at end of period

  $ 2,329     $ 1,525