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Acquisition - Narrative (Details) - Microchips Biotech, Inc. - USD ($) $ / shares in Units, $ in Thousands | Nov. 30, 2019 | Nov. 20, 2019
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Business Combination Reverse Merger [Line Items] |  |
Business acquisition transaction value | $ 2,400 |
Business combination shares issued (in usd per share) | $ 0.79 |
Cash and cash equivalents | $ 6,100 |
Contingent consideration, liability | 3,500 |
Current portion of contingent consideration | 1,000 | $ 1,000
Research and Development Expense |  |
Business Combination Reverse Merger [Line Items] |  |
Business acquisition transaction value | $ 202 |
Common stock |  |
Business Combination Reverse Merger [Line Items] |  |
Common stock issued to microchips capital stock holders (in shares) | 2,999,990 |

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