Reimburse Participants?

[Guest pmcgroine]

If an employer is late in turning over 401(k) contributions to the trustee, is the employer obligated to pay de minimis interest that would have accrued absent such (slight) neglect? By de minimis, I mean interest in an amount less than $1.00 (especially where the cost to cut a check to former employees under the plan would be in excess of $20). Any thoughts?