Major Customers (Tables)

12 Months Ended

Dec. 31, 2021

Concentration Risks, Types, No Concentration Percentage [Abstract]

Schedule of Major Customers

The following table presents sales revenue for the above-mentioned customers for the years ended December 31 (in thousands):

	2021		2020		2019
BRP product sales	$	35,078	$	20,269	$	16,774
BRP tooling sales	2,735		1,662		4,208
Total BRP sales	37,813		21,931		20,982
Navistar product sales	39,546		33,656		54,798
Navistar tooling sales	6,962		6,569		2,084
Total Navistar sales	46,508		40,225		56,882
PACCAR product sales	33,545		27,997		44,543
PACCAR tooling sales	2,016		507		1,525
Total PACCAR sales	35,561		28,504		46,068
UFP product sales	38,292		38,530		25,395
UFP tooling sales	—		—		—
Total UFP sales	38,292		38,530		25,395
Volvo product sales	35,854		23,538		48,487
Volvo tooling sales	123		2,186		262
Total Volvo sales	35,977		25,724		48,749
Other product sales	101,710		66,590		78,990
Other tooling sales	11,622		852		7,224
Total other sales	113,332		67,442		86,214
Total product sales	284,025		210,580		268,987
Total tooling sales	23,458		11,776		15,303
Total sales	$	307,483	$	222,356	$	284,290