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Disaggregation of Revenue | 3 Months Ended
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Mar. 31, 2024
Disaggregation of Revenue |
Disaggregation of Revenue | 4.Disaggregation of Revenue Disaggregation of revenues from contracts with customers is as follows (in thousands):
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Three Months Ended March 31, 2024
​ |  | Product Revenues |  | Service Revenues |  | Total
Timing of revenue recognition | ​ | ​ |  |  | ​ |  |  | ​ |
At a point in time | ​ | $ | 2,378 | ​ | $ | — | ​ | $ | 2,378
Over time | ​ |  | — | ​ |  | 887 | ​ |  | 887
Total | ​ | $ | 2,378 | ​ | $ | 887 | ​ | $ | 3,265
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended March 31, 2023
​ |  | Product Revenues |  | Service Revenues |  | Total
Timing of revenue recognition |  | ​ |  |  | ​ |  |  | ​ |
At a point in time | ​ | $ | 599 | ​ | $ | — | ​ | $ | 599
Over time | ​ |  | — | ​ |  | 2,463 | ​ |  | 2,463
Total | ​ | $ | 599 | ​ | $ | 2,463 | ​ | $ | 3,062
​ Net revenues categorized by customer location are as follows (in thousands):
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended March 31,
​ |  | ​ | 2024 |  | ​ | 2023
Korea | ​ | $ | 2,000 | ​ | $ | —
Germany | ​ |  | 796 | ​ |  | —
United States | ​ |  | 389 | ​ |  | 1,968
China | ​ |  | 80 | ​ |  | 1,094
Total | ​ | $ | 3,265 | ​ | $ | 3,062
​ Contract Assets and Liabilities Details of contract assets and liabilities is as follows (in thousands):
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | March 31, 2024 |  | December 31, 2023
Contract assets | ​ | $ | 4,313 | ​ | $ | 3,439
Assets recognized for costs incurred to fulfill a contract (*) | ​ |  | 13 | ​ |  | 12
Contract liabilities | ​ |  | 35 | ​ |  | 48
(*) | The balances are included in prepaid expenses and other current assets in the accompanying condensed consolidated balance sheets.
Net revenues recognized in relation to contract liabilities are as follows as of the periods indicated (in thousands):
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | March 31, 2024 |  | March 31, 2023
Net revenues recognized that were included in the contract liabilities balance at the beginning of the period | ​ | $ | 12 | ​ | $ | 650
​

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- Definition The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479806/606-10-50-9 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479806/606-10-50-10 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 15 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479806/606-10-50-15 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479806/606-10-50-12 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479806/606-10-50-12 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479806/606-10-50-12 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479806/606-10-50-12 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479806/606-10-50-12 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (b)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479806/606-10-50-13 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Topic 606 -Publisher FASB -URI https://asc.fasb.org//606/tableOfContent + Details
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