Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Revenue:
Total revenue	$ 6,880	$ 6,548
Cost of revenue:
Total cost of revenue	2,914	2,672
Gross margin	3,966	3,876
Operating expenses:
Research and development	2,243	2,746
Sales and marketing	3,003	3,148
General and administrative	3,466	3,601
Total operating expenses	8,712	9,495
Operating loss	(4,746)	(5,619)
Interest income, net	239	272
Net loss	(4,507)	(5,347)
Cumulative dividend on convertible preferred stock	(331)	(331)
Net loss attributable to common stockholders	$ (4,838)	$ (5,678)
Net loss per share attributable to common stockholders:
Basic	$ (0.06)	$ (0.07)
Diluted	$ (0.06)	$ (0.07)
Weighted average number of common shares and equivalents:
Basic	83,476,498	76,500,965
Diluted	83,476,498	76,500,965
Systems [Member]
Revenue:
Total revenue	$ 2,612	$ 1,821
Cost of revenue:
Total cost of revenue	1,900	1,697
Disposables Service and Accessories [Member]
Revenue:
Total revenue	4,268	4,727
Cost of revenue:
Total cost of revenue	$ 1,014	$ 975