Investments (Tables)

3 Months Ended

Mar. 31, 2018

Investments, Debt and Equity Securities [Abstract]

Investments schedule [Table Text Block]

The investment balances at March 31, 2018 and December 31, 2017, consisted of the following:

(in thousands)	March 31, 2018		December 31, 2017
Rabbi trust (associated with the Deferred Compensation Plan)	$	6,621	$	6,734
Investments in equity securities	20		22
Total	$	6,641	6,756