Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Revenue:
Total revenue	$ 26,771	$ 28,147
Cost of revenue:
Total cost of revenue	11,911	9,677
Gross margin	14,860	18,470
Operating expenses:
Research and development	10,273	10,558
Sales and marketing	12,376	12,325
General and administrative	14,050	14,363
Total operating expenses	36,699	37,246
Operating loss	(21,839)	(18,776)
Other income	30
Interest income, net	1,096	484
Net loss	(20,713)	(18,292)
Cumulative dividend on convertible preferred stock	(1,343)	(1,343)
Net loss attributable to common stockholders	$ (22,056)	$ (19,635)
Net loss per share attributable to common stockholders:
Basic	$ (0.27)	$ (0.26)
Diluted	$ (0.27)	$ (0.26)
Weighted average number of common shares and equivalents:
Basic	80,702,358	76,061,183
Diluted	80,702,358	76,061,183
Systems [Member]
Revenue:
Total revenue	$ 8,739	$ 6,845
Cost of revenue:
Total cost of revenue	8,058	5,802
Disposables Service and Accessories [Member]
Revenue:
Total revenue	18,032	21,302
Cost of revenue:
Total cost of revenue	$ 3,853	$ 3,875