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Stockholder's Equity - Schedule of Stock Based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based payment	$ 912	$ 1,112	$ 2,459	$ 3,019
Cost of product sales
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based payment	41	69	115	171
Research and development
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based payment	118	221	408	589
Sales, marketing and support
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based payment	163	226	456	620
General and administrative
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based payment	$ 590	$ 596	$ 1,480	$ 1,639

X

- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
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