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Investments Investments (Tables) | 3 Months Ended
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Mar. 31, 2016
Investments, Debt and Equity Securities [Abstract] |
Investments schedule [Table Text Block] |
(in thousands) | March 31, 2016 |  | December 31, 2015
Rabbi trust (associated with the Deferred Compensation Plan) | $ | 3,654 |  |  | $ | 3,626 |
Investments in equity securities | 20 |  |  | 18 |
Total | $ | 3,674 |  |  | $ | 3,644 |

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