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Segment Information (Tables)
3 Months Ended
Mar. 31, 2013
Segment Information [Abstract]  
Significant of Segment financial data
                                                         
    BBU     VI Chip     Picor     Corporate     Eliminations     Total  
    (1)     (1)                       (1)        

2013:

                                                       

Net revenues

  $ 38,202     $ 3,407     $ 1,782     $         —       $ (1,445   $ 41,946  

Income (loss) from operations

    2,149       (9,238     (1,204             (203     —         (8,496

Total assets

    102,264       17,843       5,334               108,551       (46,149     187,843  

Depreciation and amortization

    1,194       901       108               291       —         2,494  
               

2012:

                                                       

Net revenues

  $ 44,935     $ 14,418     $ 2,713     $         —       $ (2,398   $ 59,668  

Income (loss) from operations

    5,963       (4,792     (516             (191     —         464  

Total assets

    82,311       25,958       6,542               123,637       (30,024     208,424  

Depreciation and amortization

    1,261       894       104               373       —         2,632  

 

(1) The elimination for net revenues is principally related to inter-segment revenues of Picor to BBU and VI Chip and for inter-segment revenues of VI Chip to BBU. The elimination for total assets is principally related to inter-segment accounts receivable due to BBU for the funding of VI Chip and Picor operations.