The Company participates in a multiple employer pension plan. The following represents the net periodic cost (benefit) and related components for the plan for the three and six months ended June 30, 2020 and 2019.


	Three months ended				Six months ended
	June 30,				June 30,
(in thousands)	2020		2019		2020		2019
Interest cost	$	58	$	64	$	116	$	128
Expected return on plan assets		(73)		(118)		(146)		(235)
Amortization of net losses		24		22		48		44
Net periodic cost (benefit)	$	9	$	(32)	$	18	$	(63)

The Company did not contribute to this plan during the six months ended June 30, 2020.

The Company permits selected highly compensated employees to defer a portion of their compensation into a non-qualified Supplemental Executive Retirement Plan (“SERP”). The Company maintains certain securities in the SERP that have been classified as trading and are stated at fair value totaling approximately $6,653,000 as of June 30, 2020 and $6,716,000 as of December 31, 2019. The SERP assets are reported in other non-current assets on the consolidated balance sheets and changes to the fair value of the assets are reported in selling, general and administrative expenses in the consolidated statements of operations.

Trading losses related to the SERP assets totaled approximately $63,000 during the six months ended June 30, 2020, compared to trading gains of approximately $738,000 during the six months ended June 30, 2019. The SERP liability includes participant deferrals net of distributions and is recorded on the consolidated balance sheets in long-term pension liabilities with any change in the fair value of the liabilities recorded as compensation cost within selling, general and administrative expenses in the consolidated statements of operations.