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Statements of Convertible Preferred Stock and Stockholders' (Deficit) Equity (Parenthetical) $ in Thousands | 12 Months Ended
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Dec. 31, 2019 USD ($)
Issuance costs | $ 1,293
Convertible Preferred Stock |
Issuance costs | $ 1,293
Convertible preferred stock conversion basis | 1.5 for 1 basis
Initial Public Offering |
Issuance costs | $ 3,408

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