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Disaggregation of Revenue
 9 Months Ended
Sep. 30, 2024
Disaggregation of Revenue  
Disaggregation of Revenue

4. Disaggregation of Revenue

All product revenue presented in the condensed consolidated statement of operations is recognized at a point in time, and all service revenue is recognized over time. Net revenues are categorized by customer location as follows (in thousands):

 

 

Three Months Ended
September 30,

 

 

Nine Months Ended
September 30,

 

 

2024

 

 

2023

 

 

2024

 

 

2023

 

South Korea

 

$

1,500

 

 

$

4

 

 

$

3,500

 

 

$

3,010

 

United States

 

 

837

 

 

 

572

 

 

 

2,565

 

 

 

2,888

 

Germany

 

 

46

 

 

 

353

 

 

 

916

 

 

 

353

 

China

 

 

32

 

 

 

3,567

 

 

 

167

 

 

 

5,133

 

Other

 

 

195

 

 

 

(20

)

 

 

195

 

 

 

455

 

Total

 

$

2,610

 

 

$

4,476

 

 

$

7,343

 

 

$

11,839

 

 

Contract Assets and Liabilities

Net revenues recognized during the nine months ended September 30, 2024 and 2023 for the amounts included in the contract liabilities balance at the beginning of the respective annual periods are less than $0.1 million and $0.7 million, respectively.

As of September 30, 2024 and December 31, 2023, the contract assets were $5.1 million and $3.4 million, respectively. The balances of contract liabilities related to contract fulfillment were $0.5 million and immaterial as of September 30, 2024 and December 31, 2023.