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Property, Plant and Equipment
6 Months Ended
Jun. 30, 2019
Property, Plant and Equipment Disclosure [Abstract]  
Property, Plant and Equipment Disclosure [Text Block]

8. Property, Plant and Equipment

As of June 30, 2019 and December 31, 2018, property, plant and equipment consist of the following:

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