Note 9 - Fair Value Measurement (Tables)

3 Months Ended

Mar. 31, 2025

Table Text Block [Abstract]

Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings

Fair value adjustments, net is comprised of the following (in thousands):

	Three Months Ended March 31,
	2025			2024
Loss on derivative contracts	$	(14	)	$	(1,899	)
Unrealized gain on equity securities investments		3,641			47
Total fair value adjustments, net	$	3,627		$	(1,852	)

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis

The table below sets forth our assets and liabilities that were accounted for at fair value on a recurring basis and the fair value calculation input hierarchy level that we have determined applies to each asset and liability category (in thousands).

Description	Balance at March 31, 2025		Balance at December 31, 2024		Input Hierarchy Level
Assets:
Cash and cash equivalents:
Money market funds and other bank deposits	$	23,668	$	26,868	Level 1
Current and non-current investments:
Equity securities		36,836		33,158	Level 1
Trade accounts receivable:
Receivables from provisional concentrate sales		59,549		31,515	Level 2
Restricted cash and cash equivalent balances:
Certificates of deposit and other deposits		1,177		1,177	Level 1
Derivative contracts - current and non-current derivative assets:
Foreign exchange contracts		368		—	Level 2
Metal forward contracts		12,399		18,039	Level 2
Liabilities:
Derivative contracts - current and non-current derivative liabilities:
Foreign exchange contracts	$	7,818	$	10,176	Level 2