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Accrued expenses and other current liabilities (Details) - USD ($) $ in Thousands | Mar. 31, 2021 | Mar. 31, 2020
--- | --- | ---
Accrued expenses and other current liabilities |  |
Accrued research and development costs | $ 3,862 | $ 2,009
Accrued compensation and benefits costs | 3,952 | 2,065
Accrued professional fees | 407 | 779
Other | 514 | 303
Total | $ 8,735 | $ 5,156

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