Inventories (Details Textual) (USD $) In Millions, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Raw Materials [Member]
Inventory Reserves [Line Items]
Reserve of obsolete and slow moving inventories	$ 2.7	$ 4.2
Finished Goods [Member]
Inventory Reserves [Line Items]
Reserve of obsolete and slow moving inventories	$ 2.1	$ 1.7