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Loans payable - Narrative (Details) - SIF Loan $ in Thousands, $ in Millions	Mar. 31, 2023 USD ($)	Mar. 31, 2022	Nov. 20, 2020 USD ($)	Nov. 20, 2020 CAD ($)
Debt Instrument [Line Items]
Face amount				$ 40.0
Cumulative proceeds	$ 36,000
Repayment rate			150.00%	150.00%
Repayment benchmark year, revenue			$ 70,000
Repayment benchmark year, period			14 years	14 years
Effective interest rate	2.50%	2.36%

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