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Subsequent Event	12 Months Ended
Subsequent Event	Dec. 31, 2015
Subsequent Events [Abstract]
Subsequent Event	Subsequent Events On February 26, 2015, the Company announced it plans to realign its two business segments. Industrial Materials will now be comprised of graphite electrodes and needle coke products. Engineered Solutions will now be comprised of advanced graphite materials, advanced composite materials, advanced electronic technologies, and refractory products. Refractory products was previously included in the Industrial Materials business segment. Advanced materials products will now be a component in each business unit where these products are produced. This realignment of the business segments will allow the Company to better direct its resources and simplify its operations. The Industrial Materials business segment will continue to focus on being the lowest cost producer providing the best quality of graphite electrodes in a very challenging market. The Engineered Solutions business segment will continue to leverage the intellectual property of carbon and graphite material science to innovate and commercialize advanced technologies and new products in high growth markets. The Company also announced that it plans to review strategic alternatives for its Engineered Solutions business segment. In 2015, the segment, on a pro forma basis as newly defined, had sales of $152 million or 22% of total company sales. There can be no assurance that the review of strategic alternatives will result in a transaction. If a transaction were to occur, the company would conduct a complete review and assessment of its corporate services and structure to bring them into alignment with its new size and sharper focus.