Subsequent event (Details) - Subsequent Event	Sep. 01, 2023 USD ($) shares
RSUs | Senior management
Subsequent Event [Line Items]
Cash salaries | $	$ 166,000
Granted (in shares) | shares	283,693
DSUs. | Director
Subsequent Event [Line Items]
Director fees | $	$ 82,750
Granted (in shares) | shares	175,127