Inventories (Policies)	3 Months Ended
Inventories (Policies)	Mar. 31, 2015
Inventories [Abstract]
Inventory, Policy [Policy Text Block]	Inventory is generally valued at the lower of last-in, first-out (LIFO) cost or market. Other inventories of the Company are valued at average cost or market, whichever is lower. An actual valuation of inventory under the LIFO method is made at the end of each year based on the inventory levels and costs at that time. Interim LIFO calculations are based on management’s estimates of expected year-end levels and costs.

Disclosure of accounting policy for major classes of inventories, bases of stating inventories (for example, lower of cost or market), methods by which amounts are added and removed from inventory classes (for example, FIFO, LIFO, or average cost), loss recognition on impairment of inventories, and situations in which inventories are stated above cost. If inventory is carried at cost, this disclosure includes the nature of the cost elements included in inventory.

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