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Note 8 - Customer and Geographic Information (Tables)
9 Months Ended
Sep. 30, 2014
Segment Reporting [Abstract]  
Schedule of Revenue by Major Customers by Reporting Segments [Table Text Block]
   

Three Months

Ended September 30,

   

Nine Months

Ended September 30,

 

Customer

 

2014

   

2013

   

2014

   

2013

 

A

    56

%

    28

%

    50

%

    31

%

B

    13

%

    13

%

    16

%

    17

%

C

    11

%

    35

%

    12

%

    26

%

Schedule of Receivables by Major Customers [Table Text Block]

Customer

 

September 30,

2014

   

December 31,

2013

 
                 

A

    46

%

    36

%

B

    24

%

    17

%

C

    8

%

    23

%

Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block]
   

Three Months Ended September 30,

 
   

2014

   

2013

 
   

Revenues

   

Percentage

of

Revenues

   

Revenues

   

Percentage

of

Revenues

 

North America

  $ 10,529       47

%

  $ 7,686       30

%

Germany

    7,913       35       5,140       20  

South Korea

    1,304       6       8,272       32  

Japan

    479       2       2,223       9  

Rest of Asia

    925       4       1,256       5  

Rest of Europe

    1,256       6       912       4  

Total revenue

  $ 22,406       100

%

  $ 25,489       100

%

   

Nine Months Ended September 30,

 
   

2014

   

2013

 
   

Revenues

   

Percentage

of

Revenues

   

Revenues

   

Percentage

of

Revenues

 

North America

  $ 32,087       43

%

  $ 28,367       38

%

Germany

    26,046       35       15,006       20  

South Korea

    4,806       6       16,816       23  

Japan

    3,408       5       6,445       9  

Rest of Asia

    3,643       5       4,899       7  

Rest of Europe

    4,112       6       2,842       3  

Total revenue

  $ 74,102       100

%

  $ 74,375       100

%

Schedule of Disclosure on Geographic Areas, Long-Lived Assets in Individual Foreign Countries by Country [Table Text Block]
   

September 30,

2014

   

December 31,

2013

 

North America

  $ 8,120     $ 6,578  

Asia

    432       364  

Europe

    127       122  

Total long-lived assets, net

  $ 8,679     $ 7,064