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Government assistance - Economic Incentive Disaster Loan (Details) - USD ($) | 1 Months Ended | 12 Months Ended
--- | --- | ---
May 31, 2020 | Dec. 31, 2020
Debt Instrument [Line Items] |  |
Grants recognized as a reduction to operating expenses |  | $ 1,816,000
Economic Incentive Disaster Loan |  |
Debt Instrument [Line Items] |  |
Economic Incentive Disaster Loan | $ 10,000 |
Grants recognized as a reduction to operating expenses |  | $ 10,000

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- Definition The amount of government grant recorded as reduction of expenses. + References No definition available. + Details
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- Definition The cash inflow during the period from the U.S. Small Business Administration from a grant that does not have to be repaid. + References No definition available. + Details
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- Details
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