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Net loss per common share - Computation of diluted net loss per share (Details) - shares	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Net loss per common share
Warrants outstanding	4,519,750		6,307,193
Employee Stock Option [Member]
Net loss per common share
Antidilutive securities excluded from computation of diluted net loss per share attributable to common stockholders (in shares)	2,642,071	1,949,213
RSUs and PRSUs
Net loss per common share
Antidilutive securities excluded from computation of diluted net loss per share attributable to common stockholders (in shares)	454,090	320,161
Warrants to purchase common stock
Net loss per common share
Antidilutive securities excluded from computation of diluted net loss per share attributable to common stockholders (in shares)	4,541,398	425,387

X

- Definition

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 260
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482662/260-10-50-1

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- Definition

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+ References

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- Definition

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+ References

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