Acquisition (Tables)

12 Months Ended

Dec. 31, 2017

Business Acquisition [Line Items]

Schedule of Business Acquisitions, by Acquisition [Table Text Block]

The following table summarizes the final allocation of the purchase price to the fair values assigned to the assets and liabilities assumed at the date of acquisition:

(In thousands)	Amount
Other current assets	$	726
Property, plant and equipment	2,447
Identifiable intangible assets	8,820
Net assets acquired	11,993
Goodwill	$	8,007
Total purchase price	20,000