Major classifications and expected lives of property, plant and equipment are summarized below (In thousands) (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
Major classifications and expected lives of property, plant and equipment are summarized below
Land and office buildings	$ 3,472	$ 3,354
Production facilities	10,121	8,552
Machinery and equipment	36,944	32,869
Furniture and fixtures	1,534	1,515
Property, plant and equipment gross	52,071	46,290
Less accumulated depreciation	(28,956)	(26,508)
Property, plant and equipment, net	23,115	19,782
Construction in progress	684	3,151
Total property, plant and equipment	$ 23,799	$ 22,933
Land and office buildings expected life	39 years
Production facilities expected life	10 - 20 years
Machinery and equipment expected life	3 - 15 years
Furniture and fixtures expected life	3 - 20 years