Investments (Tables)

12 Months Ended

Dec. 31, 2019

Investments [Abstract]

Investments schedule [Table Text Block]

	As of December 31,
(in thousands)	2019		2018
Rabbi trust (associated with the Non-Qualified Deferred Compensation Plan)	$	9,202	$	6,689
Investments in equity securities	27		22
Total	$	9,229	$	6,711