Property and Equipment

12 Months Ended

Dec. 31, 2023

Property, Plant and Equipment [Abstract]

Property and Equipment

6. Property and Equipment

Property and equipment consisted of the following as of December 31, 2023 and 2022:

	December 31,
	2023			2022
Furniture and fixtures	$	69		$	69
Lab and office equipment		2,510			2,243
Computer equipment		233			233
Internal-use software		253			139
Leasehold improvements		269			175
Property and equipment		3,334			2,859
Less accumulated depreciation and amortization		(2,544	)		(2,379	)
Net property and equipment	$	790		$	480

Depreciation and amortization expense from continuing operations was approximately $0.2 million for the years ended December 31, 2023 and 2022, respectively. There was zero internal-use software amortization expense included in depreciation and amortization expense in 2023 and 2022, and $0.1 million of internal use unamortized software costs at December 31, 2023 and zero at December 31, 2022. The costs were unamortized as they were not in use at December 31, 2023.