Inventories (Details Textual)	9 Months Ended	12 Months Ended
	Sep. 30, 2016	Dec. 31, 2015
Inventory [Line Items]
Percentage Of Fifo Inventory Non Current For Finished Goods	51.00%	73.00%
Inventory Related Text	Inventories are stated at the lower of cost, determined by the first-in, first-out (FIFO) method, or market.