Inventories (Details Textual) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Raw Materials [Member]
Inventory Reserves [Line Items]
Reserve of obsolete and slow moving inventories	$ 4.2	$ 4.2
Finished Goods [Member]
Inventory Reserves [Line Items]
Reserve of obsolete and slow moving inventories	$ 1.7	$ 2.7