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Statements of Operations - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Income Statement [Abstract]    
Revenue $ 48,299 $ 41,975
Operating expenses:    
Costs of revenue 20,588 16,559
Selling, general and administrative expenses 44,541 37,033
Research and development expenses 7,237 3,568
Total operating expenses 72,366 57,160
Loss from operations (24,067) (15,185)
Interest expense (2,625) (2,565)
Other income, net 16 984
Loss before income taxes (26,676) (16,766)
Income tax (expense) benefit (175) 79
Net loss $ (26,851) $ (16,687)
Net loss per share, basic (in dollars per share) $ (1.68) $ (1.32)
Net loss per share, diluted (in dollars per share) $ (1.68) $ (1.32)
Weighted-average number of shares used to compute net loss per share, basic (in shares) 15,972,256 12,632,780
Weighted-average number of shares used to compute net loss per share, diluted (in shares) 15,972,256 12,632,780