Stockholder's Equity - Schedule of Stock Based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based payment	$ 1,042	$ 912	$ 3,029	$ 2,459
Cost of sales | Product
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based payment	78	41	194	115
Cost of sales | Service
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based payment	3	0	8	0
Research and development
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based payment	150	118	491	408
Sales, marketing and support
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based payment	239	163	664	456
General and administrative
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based payment	$ 572	$ 590	$ 1,672	$ 1,480