Revenue Recognition (Tables)

9 Months Ended

Sep. 30, 2021

Revenue From Contract With Customer [Abstract]

Summary of Revenue

The following summarizes our revenue by melt type:

	Three months ended September 30,				Nine months ended September 30,
	2021		2020			2021		2020
Net sales:
Specialty alloys	$	30,973	$	27,847	$		92,359	$	116,869
Premium alloys (A)		5,936		9,165			19,383		29,271
Conversion services and other sales		260		422			967		2,267
Total net sales	$	37,169		37,434	$		112,709		148,407

(A) Premium alloys represent all vacuum induction melted (VIM) products.