Property, Plant and Equipment (Tables)

12 Months Ended

Dec. 31, 2014

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment [Table Text Block]

	December 31,
	2014	2013
Land (including easements)	$ 1,976	$ 2,072
Buildings and improvements	10,731	11,076
Leasehold improvements	6,983	5,483
Machinery and equipment	50,771	42,115
Software	8,299	9,089
Cost of buildings and improvements, leasehold improvements, machinery and equipment	76,784	67,763
Less: Accumulated depreciation and amortization	(38,747)	(31,406)
Buildings and improvements, leasehold improvements, machinery and equipment, net of accumulated depreciation and amortization	38,037	36,357
Construction in process	3,226	967
Total property, plant and equipment	$ 43,239	$ 39,396