Inventories (Tables)

3 Months Ended

Mar. 31, 2022

Inventory Disclosure [Abstract]

Schedule of Inventories

Inventories were comprised of the following

	March 31, 2022		December 31, 2021
Raw materials	$	27,725	$	22,332
Work-in-process		42,741		37,447
Finished goods		16,698		18,093
Supplies		10,708		10,326
Inventories	$	97,872	$	88,198