Stockholders' Deficit (Tables)

6 Months Ended

Jun. 30, 2024

Stockholders' Deficit

Schedule of allocation of stock-based compensation expense

Stock-based compensation expense was allocated as follows (in thousands):

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2024		2023		2024		2023
Cost of product revenues	$	17	$	28	$	36	$	57
Research and development		63		81		137		168
Selling and marketing		8		32		20		62
General and administrative		196		341		425		692
Total	$	284	$	482	$	618	$	979