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v3.20.4

Segment Information - Narrative (Details) | 12 Months Ended
--- | ---
Dec. 31, 2020 USD ($) segment | Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($)
Segment Reporting Information [Line Items] |  |  |
Number of reportable segments | segment | 2 |  |
Allowance for credit loss | $ 74,000 | $ 136,000 |
Net revenue, before excise taxes | 54,353,000 | 25,639,000 | $ 13,234,000
United States |  |  |
Segment Reporting Information [Line Items] |  |  |
Allowance for credit loss | 65,000 | 12,000 |
Rest of World |  |  |
Segment Reporting Information [Line Items] |  |  |
Allowance for credit loss | 9,000 | 124,000 | 0
Four Major Customers | Rest of World |  |  |
Segment Reporting Information [Line Items] |  |  |
Net revenue, before excise taxes | $ 34,295,000 |  |
Four Major Customers | Rest of World | Customer Concentration Risk | Revenue Benchmark |  |  |
Segment Reporting Information [Line Items] |  |  |
Concentration risk, percentage | 63.00% |  |
Two Major Customers | Rest of World |  |  |
Segment Reporting Information [Line Items] |  |  |
Net revenue, before excise taxes |  | $ 7,597,000 |
Two Major Customers | Rest of World | Customer Concentration Risk | Revenue Benchmark |  |  |
Segment Reporting Information [Line Items] |  |  |
Concentration risk, percentage |  | 32.00% |
One Major Customer | Rest of World |  |  |
Segment Reporting Information [Line Items] |  |  |
Net revenue, before excise taxes |  |  | $ 2,186,000
One Major Customer | Rest of World | Customer Concentration Risk | Revenue Benchmark |  |  |
Segment Reporting Information [Line Items] |  |  |
Concentration risk, percentage |  |  | 17.00%

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