Restricted Cash and Investments (Tables)

12 Months Ended

Dec. 31, 2024

Restricted Cash And Investments [Abstract]

Summary of restricted cash and investments

	At December 31		At December 31
(in thousands)	2024		2023
Cash and cash equivalents	$	3,652	$	3,259
Investments		7,972		7,972
	$	11,624	$	11,231
Restricted cash and investments-by item:
Elliot Lake reclamation trust fund	$	3,652	$	3,259
Letters of credit facility pledged assets		7,972		7,972
	$	11,624	$	11,231