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Segment Information and Foreign Operations (Tables)
6 Months Ended
Jun. 30, 2021
Segment Information and Foreign Operations  
Revenues reported by product type

The following table represents revenue amounts (in thousands) by product type:

Three Months Ended

Six Months Ended

June 30, 

June 30, 

    

2021

    

2020

    

2021

    

2020

 

 

Product Type:

Substrates

$

24,905

$

16,874

$

48,278

$

33,755

Raw Materials and Other

 

8,830

 

5,260

 

16,807

 

9,102

Total

$

33,735

$

22,134

$

65,085

$

42,857

Revenue reported for products shipped to customers in the corresponding geographic region

The following table represents revenue amounts (in thousands) reported for products shipped to customers in the corresponding geographic region:

Three Months Ended

Six Months Ended

June 30, 

June 30, 

    

2021

    

2020

    

2021

    

2020

 

 

Geographical region:

China

$

15,546

$

7,753

$

31,092

$

12,477

Taiwan

4,996

4,398

8,011

9,575

Japan

 

2,635

 

1,698

 

5,158

 

3,032

Asia Pacific (excluding China, Taiwan and Japan)

1,396

1,701

3,213

3,057

Europe (primarily Germany)

6,411

4,114

11,846

10,328

North America (primarily the United States)

 

2,751

 

2,470

5,765

4,388

Total

$

33,735

$

22,134

$

65,085

$

42,857

Long-lived assets by geographic region

Long-lived assets consist primarily of property, plant and equipment and operating lease right-of-use assets, and are attributed to the geographic location in which they are located. Long-lived assets, net of depreciation, by geographic region were as follows (in thousands):

As of

June 30, 

December 31, 

    

2021

    

2020

 

Long-lived assets by geographic region, net of depreciation:

North America

$

1,306

$

836

China

 

128,439

 

117,672

$

129,745

$

118,508