Inventories

12 Months Ended

Dec. 31, 2023

Inventory Disclosure [Abstract]

Inventories

Inventories

Inventories are summarized as follows:

	December 31
	2023		2022
Coal	$	23,784	$	27,927
Mining supplies	53,216		43,561
Total inventories	$	77,000	$	71,488

The weighted average method is used for inventory valuation. During 2023, the Company recorded a $7.5 million inventory impairment charge in the line “Cost of sales” in the accompanying Consolidated Statements of Operations as mining costs exceeded net realizable value at MLMC.