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Stock-Based Compensation and 401(k) Plan (Tables) | 3 Months Ended
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Mar. 31, 2023
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Summary of Stock-Based Compensation Expense by Operating Expense | The following is a summary of our stock-based compensation expense by operating expense line in the Unaudited Condensed Consolidated Statements of Operations (in thousands):
|  | For the Three Months Ended March 31, |
|  | 2023 |  |  | 2022 |
Cost of service revenue |  | $ | 343 |  |  | $ | 186 |
Cost of equipment revenue |  |  | 287 |  |  |  | 208 |
Engineering, design and development |  |  | 754 |  |  |  | 494 |
Sales and marketing |  |  | 738 |  |  |  | 549 |
General and administrative |  |  | 2,919 |  |  |  | 2,570 |
Total stock-based compensation expense |  | $ | 5,041 |  |  | $ | 4,007 |

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- Definition Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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