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Property, Plant and Equipment (Tables)
3 Months Ended
Mar. 31, 2019
Property, Plant and Equipment Disclosure [Abstract]  
Schedule Of Property Plant And Equipment [Table Text Block]
March 31,December 31,
20192018
(in thousands)
Land, buildings and leasehold improvements$2,542$2,468
Machinery and equipment9,9079,678
Computer equipment and software9,7139,685
Furniture and fixtures1,4071,390
Automobiles114115
23,68323,336
Less: accumulated depreciation(18,101)(17,438)
Property, plant and equipment, net$5,582$5,898