Balance Sheet Details

6 Months Ended

Jun. 30, 2024

Balance Sheet Related Disclosures [Abstract]

Note 4. Balance Sheet Details

Inventory and other deferred costs consist of the following (in thousands):


	June 30, 2024		December 31, 2023
Raw materials	$	4,694	$	5,661
Other deferred costs		4,470		4,813
Total inventory and other deferred costs	$	9,164	$	10,474

Property and equipment. Depreciation and amortization expense for the three months ended June 30, 2024 and 2023 was $2.8 million, and for the six months ended June 30, 2024 and 2023 was $5.6 million. Accumulated depreciation and amortization was $41.6 million and $37.7 million as of June 30, 2024 and December 31, 2023, respectively.

Restricted cash. The Company’s restricted cash is pledged as collateral for a standby letter of credit related to a property lease. The balance of restricted cash was $1.8 million as of June 30, 2024 and December 31, 2023, and is included in other long-term assets.

Accrued and other current liabilities consist of the following (in thousands):


	June 30, 2024		December 31, 2023
Accrued compensation	$	6,314	$	12,816
Operating lease liabilities		7,858		7,761
Loans—current portion (Note 6)		1,561		1,646
Accrued liabilities		2,406		858
Market Development Fees received from Tempus (Note 8)		800		—
Employee ESPP contributions		241		311
Accrued taxes		38		37
Customer deposits		30		512
Total accrued and other current liabilities	$	19,248	$	23,941