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Revenue (Tables) | 3 Months Ended
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Mar. 31, 2021
Revenue from Contract with Customer [Abstract] |
Schedule of Sales by End Market | The following tables represent a disaggregation of revenue from contracts with customers for the periods presented (in thousands): Sales by End Market
|  |  | Three Months Ended March 31,
|  |  |  |  | 2021 |  | 2020 |  |
Industrial |  |  |  |  | $ | 21,400 |  |  | $ | 15,990 |  |  |
Microfabrication |  |  |  |  | 15,215 |  |  | 10,419 |  |  |
Aerospace and Defense |  |  |  |  | 24,730 |  |  | 16,806 |  |  |
|  |  |  |  | $ | 61,345 |  |  | $ | 43,215 |  |  |
Schedule of Sales by Geography | Sales by Geography
|  |  | Three Months Ended March 31,
|  |  |  |  | 2021 |  | 2020 |  |
North America |  |  |  |  | $ | 31,134 |  |  | $ | 21,046 |  |  |
China |  |  |  |  | 15,577 |  |  | 12,042 |  |  |
Rest of World |  |  |  |  | 14,634 |  |  | 10,127 |  |  |
|  |  |  |  | $ | 61,345 |  |  | $ | 43,215 |  |  |
Schedule of Sales by Timing of Revenue | Sales by Timing of Revenue
|  |  | Three Months Ended March 31,
|  |  |  |  | 2021 |  | 2020 |  |
Point in time |  |  |  |  | $ | 46,994 |  |  | $ | 36,930 |  |  |
Over time |  |  |  |  | 14,351 |  |  | 6,285 |  |  |
|  |  |  |  | $ | 61,345 |  |  | $ | 43,215 |  |  |
Schedule of Contract Assets and Liabilities | The Company's contract assets and liabilities are as follows (in thousands):
| Balance Sheet Classification |  | As of
|  | March 31, 2021 |  | December 31, 2020
Contract assets | Prepaid expenses and other current assets |  | $ | 4,329 |  |  | $ | 5,680 |
Contract liabilities | Deferred revenue and Other long-term liabilities |  | 4,203 |  |  | 2,985 |

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- Definition Tabular disclosure of receivable, contract asset, and contract liability from contract with customer. Includes, but is not limited to, change in contract asset and contract liability. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130551-203045 + Details
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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130545-203045 + Details
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- Definition Tabular disclosure of revenue from external customers by geographic areas attributed to the entity's country of domicile and to foreign countries from which the entity derives revenue. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -Subparagraph a -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9038-108599 + Details
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- Definition Tabular disclosure of entity-wide revenues from external customers for each product or service or each group of similar products or services if the information is not provided as part of the reportable operating segment information. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 40 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9031-108599 + Details
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