Post Retirement Benefits (Tables)

3 Months Ended

Mar. 31, 2018

Retirement Benefits [Abstract]

Schedule of Defined Benefit Plans Disclosures [Table Text Block]

The components of expense for Core Molding Technologies’ post-retirement benefit plans for the three months ended March 31, 2018 and 2017 are as follows:

	Three Months Ended
	March 31,
	2018			2017
Pension expense:
Multi-employer plan	$	178,000		$	157,000
Defined contribution plan	259,000			207,000
Total pension expense	437,000			364,000
Health and life insurance:
Interest cost	69,000			75,000
Amortization of prior service costs	(124,000		)	(124,000		)
Amortization of net loss	43,000			37,000
Net periodic benefit cost	(12,000		)	(12,000		)
Total post retirement benefits expense	$	425,000		$	352,000