Major Customers (Tables)

6 Months Ended

Jun. 30, 2020

Concentration Risks, Types, No Concentration Percentage [Abstract]

Schedule of Major Customers

The following table presents sales revenue for the above-mentioned customers for the three and six months ended June 30, 2020 and 2019:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2020		2019		2020		2019
UFP product sales	$	9,484,000	$	9,203,000	$	18,471,000	$	15,325,000
UFP tooling sales	—		—		—		—
Total UFP sales	9,484,000		9,203,000		18,471,000		15,325,000
Navistar product sales	6,500,000		17,043,000		17,166,000		31,296,000
Navistar tooling sales	1,088,000		743,000		1,186,000		782,000
Total Navistar sales	7,588,000		17,786,000		18,352,000		32,078,000
Volvo product sales	2,167,000		14,581,000		9,740,000		29,096,000
Volvo tooling sales	622,000		32,000		2,147,000		139,000
Total Volvo sales	2,789,000		14,613,000		11,887,000		29,235,000
PACCAR product sales	3,167,000		12,435,000		11,116,000		24,247,000
PACCAR tooling sales	—		987,000		207,000		1,160,000
Total PACCAR sales	3,167,000		13,422,000		11,323,000		25,407,000
BRP product sales	2,206,000		2,429,000		9,453,000		7,977,000
BRP tooling sales	113,000		38,000		333,000		129,000
Total BRP sales	2,319,000		2,467,000		9,786,000		8,106,000
Other product sales	12,323,000		19,749,000		31,831,000		38,951,000
Other tooling sales	136,000		4,007,000		180,000		4,411,000
Total other sales	12,459,000		23,756,000		32,011,000		43,362,000
Total product sales	35,847,000		75,440,000		97,777,000		146,892,000
Total tooling sales	1,959,000		5,807,000		4,053,000		6,621,000
Total sales	$	37,806,000	$	81,247,000	$	101,830,000	$	153,513,000