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Geographic Information (Tables)
 12 Months Ended
Dec. 31, 2017
Geographic Information  
Schedule of revenue by country

Revenue from customers is designated based on the geographic region or country to which the product is delivered or licensee is located. Revenue by country was as follows (in thousands):

 

 

 

 

 

 

 

 

 

 

 

 

Year Ended December 31, 

 

    

2017

    

2016

    

2015

United States

 

$

4,759

 

$

4,321

 

$

5,362

Singapore

 

 

8,067

 

 

5,467

 

 

4,614

Japan

 

 

4,128

 

 

3,285

 

 

2,280

Germany

 

 

2,964

 

 

3,013

 

 

3,546

Taiwan

 

 

2,076

 

 

2,161

 

 

3,759

Hong Kong

 

 

2,179

 

 

2,122

 

 

2,744

All other

 

 

11,763

 

 

6,725

 

 

4,241

Total revenue

 

$

35,936

 

$

27,094

 

$

26,546