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Composition of Certain Condensed Consolidated Financial Statement Line Items | 6 Months Ended
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Jun. 30, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Composition of Certain Condensed Consolidated Financial Statement Line Items | Composition of Certain Condensed Consolidated Financial Statement Line Items Property and Equipment, Net Property and equipment consisted of the following:
(in thousands) | June 30, 2023 |  | December 31, 2022
Laboratory equipment | $ | 5,755 |  |  | $ | 4,892 |
Leasehold improvements | 118 |  |  | 13 |
Computer hardware | 222 |  |  | 166 |
Furniture, fixtures and office equipment | 314 |  |  | 25 |
Prototype equipment | 605 |  |  | 332 |
Construction in progress | 903 |  |  | 1,235 |
| 7,917 |  |  | 6,663 |
Less: Accumulated depreciation | (3,739) |  |  | (2,963) |
Total | $ | 4,178 |  |  | $ | 3,700 |
The Company recorded depreciation expense of $0.4 million and $0.8 million for the three and six months ended June 30, 2023 and $0.3 million and $0.6 million for the three and six months ended June 30, 2022, respectively, which was primarily allocated to research and development expense. Accrued Expenses and Other Liabilities Accrued expenses and other liabilities consisted of the following:
(in thousands) | June 30, 2023 |  | December 31, 2022
Employee compensation | $ | 2,098 |  |  | $ | 1,669 |
Accrued research and development | 596 |  |  | 970 |
Accrued professional and consulting fees | 362 |  |  | 451 |
Other | 355 |  |  | 438 |
Total | $ | 3,411 |  |  | $ | 3,528 |
Cash, Cash Equivalents and Restricted Cash Cash, cash equivalents and restricted cash consisted of the following:
(in thousands) | June 30, 2023 |  | December 31, 2022
Cash and cash equivalents | $ | 72,139 |  |  | $ | 114,523 |
Restricted cash included in other long-term assets (Note 8) | 1,614 |  |  | 954 |
Total | $ | 73,753 |  |  | $ | 115,477 |
Other long-term assets consisted of $1.6 million of restricted cash and $0.2 million of deposits as of June 30, 2023, and $0.9 million of restricted cash and $0.2 million of deposits as of December 31, 2022.

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- Definition The entire disclosure for supplemental balance sheet disclosures, including descriptions and amounts for assets, liabilities, and equity. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 210 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//210/tableOfContent + Details
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