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COMBINED AND CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Sales    
Total sales $ 1,496 $ 294
Cost of sales    
Total cost of sales 2,663 771
Gross margin (1,167) (477)
Operating Expenses:    
Research and development 25,842 14,593
General and administrative 27,497 5,921
Sales and marketing 10,362 2,500
Total operating expenses 63,701 23,014
Loss from operations (64,868) (23,491)
Interest income 18 70
Other expense, net (1) (6)
Loss before provision for income taxes (64,851) (23,427)
Provision for income taxes 0  
Net loss and comprehensive loss $ (64,851) $ (23,427)
Net loss per common share attributable to common stockholders, basic and diluted $ (17.57) $ (15.38)
Weighted-average shares used to compute net loss per share attributable to common stockholders, basic and diluted 3,690,523 1,523,096
Device    
Sales    
Total sales $ 715 $ 200
Cost of sales    
Total cost of sales 2,058 763
Service    
Sales    
Total sales 781 94
Cost of sales    
Total cost of sales $ 605 $ 8