CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Sales
Total sales	$ 11,032	$ 6,814
Cost of sales
Total cost of sales	6,275	5,907
Gross margin	4,757	907
Operating Expenses:
Research and development	22,493	28,156
General and administrative	20,276	32,406
Sales and marketing	10,103	14,219
Total operating expenses	52,872	74,781
Loss from operations	(48,115)	(73,874)
Interest income	3,842	761
Other income (expense), net	35	(51)
Loss before provision for income taxes	(44,238)	(73,164)
Provision for income taxes	0	0
Net loss and comprehensive loss	$ (44,238)	$ (73,164)
Earnings Per Share, Basic	$ (0.62)	$ (1.04)
Earnings Per Share, Diluted	$ (0.62)	$ (1.04)
Denominator for Basic EPS - weighted - average common stock	71,316,424	70,449,191
Denominator for Dilutive EPS - Weighted - average common stock	71,316,424	70,449,191
Device
Sales
Total sales	$ 8,746	$ 5,246
Cost of sales
Total cost of sales	4,463	4,231
Service
Sales
Total sales	2,286	1,568
Cost of sales
Total cost of sales	$ 1,812	$ 1,676