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Fair Value Measurements Warrants (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2020 | Mar. 31, 2019
Fair Value Disclosures [Abstract] |  |
Fair Value Adjustment Of Warrants, Income Statement | $ (338) | $ 407

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- Definition Amount of expense (income) related to adjustment to fair value of warrant liability. + References No definition available. + Details
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Balance Type: | debit
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- References No definition available. + Details
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