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Revenue Concentration (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Sep. 30, 2021
Revenue, Major Customer [Line Items] |  |  |
Revenue | $ 32,473 | $ 25,976 |
Accounts receivable, net | 16,930 |  | $ 16,602
Customer Concentration Risk | Sales Revenue Net |  |  |
Revenue, Major Customer [Line Items] |  |  |
Revenue | 8,000 | 3,900 |
Customer Concentration Risk | Accounts Receivable |  |  |
Revenue, Major Customer [Line Items] |  |  |
Accounts receivable, net | $ 2,800 | $ 100 |
Customer Concentration Risk | Customer One | Sales Revenue Net |  |  |
Revenue, Major Customer [Line Items] |  |  |
Total revenue, percentage | 15.00% | 15.00% |
Customer Concentration Risk | Customer Two | Sales Revenue Net |  |  |
Revenue, Major Customer [Line Items] |  |  |
Total revenue, percentage | 10.00% |  |
Geographic Concentration Risk | Sales Revenue Net | International |  |  |
Revenue, Major Customer [Line Items] |  |  |
Total revenue, percentage | 32.00% | 31.00% |
Geographic Concentration Risk | Long-term Assets | International |  |  |
Revenue, Major Customer [Line Items] |  |  |
Total revenue, percentage | 23.00% |  | 24.00%
Geographic Concentration Risk | Long-term Assets, Excluding Goodwill and Other Intangibles | International |  |  |
Revenue, Major Customer [Line Items] |  |  |
Total revenue, percentage | 5.00% |  | 6.00%

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