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Investments in Companies (Tables)
 9 Months Ended
Sep. 30, 2013
Investments in Companies [Abstract]  
Investments
The investments are summarized below (in thousands):

 
Investment Balance as of
 
 
 
 
 
September 30,
  
December 31,
 
Accounting
 
Ownership
 
Company
 
2013
  
2012
 
Method
 
Percentage
 
Beijing JiYa Semiconductor Material Co., Ltd
 
$
3,331
  
$
3,331
 
Consolidated
  
46
%
Nanjing Jin Mei Gallium Co., Ltd
  
592
   
592
 
Consolidated
  
83
%
Beijing BoYu Semiconductor Vessel Craftwork Technology Co., Ltd
  
410
   
410
 
Consolidated
  
70
%
 
 
$
4,333
  
$
4,333
 
 
    
 
        
 
    
Donghai County Dongfang High Purity Electronic Materials Co., Ltd.
 
$
1,950
  
$
2,038
 
Equity
  
46
%
Xilingol Tongli Germanium Co. Ltd
  
4,618
   
4,246
 
Equity
  
25
%
Emeishan Jia Mei High Purity Metals Co., Ltd
  
942
   
1,042
 
Equity
  
25
%
 
 
$
7,510
  
$
7,326
 
 
    
Summarized income information
All of the minority investment entities that are not consolidated and accounted for under the equity method had the following summarized income information (in thousands) for the three and nine months ended September 30, 2013 and 2012.

 
 
Three Months Ended
September 30,
  
Nine Months Ended
September 30,
 
 
 
2013
  
2012
  
2013
  
2012
 
 
 
  
  
  
 
Net revenue
 
$
11,024
  
$
9,394
  
$
29,938
  
$
23,676
 
Gross profit
 $
3,628
  $
3,377
  $
10,516
  $
8,137
 
Operating income
 $
2,393
  $
2,018
  $
6,566
  $
4,542
 
Net income
 $
1,631
  $
1,897
  $
4,960
  $
3,915