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Composition of Certain Condensed Consolidated Financial Statement Line Items
 6 Months Ended
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 improvements118 13 
Computer hardware222 166 
Furniture, fixtures and office equipment314 25 
Prototype equipment605 332 
Construction in progress903 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 development596 970 
Accrued professional and consulting fees362 451 
Other355 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.