Basis of Presentation (Tables)

9 Months Ended

Sep. 30, 2022

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Share-Based Payment Arrangement, Expensed and Capitalized, Amount

Stock-based compensation expense is allocated to the applicable departmental cost in our condensed consolidated financial statements. The following table summarizes total stock-based compensation expense for each of the line items on our condensed consolidated statements of operations:

	Three Months Ended				Nine Months Ended
	September 30, 2022		September 30, 2021		September 30, 2022		September 30, 2021
Cost of sales
Product	$	231	$	147	$	635	$	435
Service	42		43		121		$	35
Total cost of sales	$	273	$	190	$	756	$	470
Operating expenses
Selling, general and administrative	$	2,742	$	2,581	$	7,475	$	6,789
Research and development	651		509		1,793		1,398
Total operating expenses	$	3,393	$	3,090	$	9,268	$	8,187