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Revenue, Segment and Geographic Information - Additional Information (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2020 USD ($)	Sep. 30, 2019	Sep. 30, 2020 USD ($) Segment	Sep. 30, 2019
Segment Reporting Reconciling Item For Operating Profit Loss From Segment To Consolidated [Line Items]
Number of Reportable Segments | Segment			2
Germany
Segment Reporting Reconciling Item For Operating Profit Loss From Segment To Consolidated [Line Items]
Exception of Long-Lived Assets | $	$ 219,627		$ 219,627
Revenue | Customer Concentration Risk
Segment Reporting Reconciling Item For Operating Profit Loss From Segment To Consolidated [Line Items]
Concentration risk, percentage	23.30%	14.70%	35.20%	35.00%
Revenue | Customer Concentration Risk | Non-U.S.
Segment Reporting Reconciling Item For Operating Profit Loss From Segment To Consolidated [Line Items]
Concentration risk, percentage	35.00%	60.00%	44.00%	63.00%

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