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Property, Plant and Equipment (Tables)
6 Months Ended
Jun. 30, 2019
Property, Plant and Equipment Disclosure [Abstract]  
Schedule Of Property Plant And Equipment [Table Text Block]
June 30,December 31,
20192018
(in thousands)
Land, buildings and leasehold improvements$2,527$2,468
Machinery and equipment9,9149,678
Computer equipment and software9,8149,685
Furniture and fixtures1,4061,390
Automobiles114115
23,77523,336
Less: accumulated depreciation(18,416)(17,438)
Property, plant and equipment, net$5,359$5,898