Investments (Tables)

6 Months Ended

Jun. 30, 2018

Investments, Debt and Equity Securities [Abstract]

Investments schedule [Table Text Block]

The investment balances at June 30, 2018 and December 31, 2017, consisted of the following:

(in thousands)	June 30, 2018		December 31, 2017
Rabbi trust (associated with the Deferred Compensation Plan)	$	7,465	$	6,734
Investments in equity securities	21		22
Total	$	7,486	6,756