Basis of Presentation (Tables)

3 Months Ended

Mar. 31, 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 statement of operations:

	Three Months Ended
	March 31, 2022		March 31, 2021
Cost of Sales
Product	$	160	$	110
Service	39		(44)
Total cost of sales	$	199	$	66
Operating Expenses
Selling, general and administrative	$	2,221	$	1,682
Research and development	447		346
Total operating expenses	$	2,668	$	2,028