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Cash and cash equivalents
3 Months Ended
Mar. 31, 2024
Cash and Cash Equivalents [Abstract]  
Cash and cash equivalents
4. Cash and cash equivalents:
Of the total cash and cash equivalents at March 31, 2024 and December 31, 2023, $30.2 million and $15.0 million, respectively, was not available for the general corporate purposes of the Company as it was held by non-wholly-owned subsidiaries.
At March 31, 2024, the Company has $4.5 million in cash equivalents in the form of redeemable short-term investments (December 31, 2023 - $0)