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Organization and Significant Accounting Policies, Inventory Valuation (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Inventory Valuation [Abstract] |  |  |
Inventory write-off |  | $ 0 | $ 0
Raw materials | 15,883 | 8,497 |
Work-in-process | 2,039 | 0 |
Finished goods | 258 | 85 |
Total inventory | 18,180 | 8,582 |
Clinical Member] |  |  |
Inventory Valuation [Abstract] |  |  |
Raw materials | 9,363 | 8,497 |
Commercial [Member] |  |  |
Inventory Valuation [Abstract] |  |  |
Raw materials | $ 6,520 | $ 0 |

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