Inventories (Details Textual) (USD $) In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Raw Materials [Member]
Inventory [Line Items]
Reserve of obsolete and slow moving inventories	$ 3.0	$ 4.2
Finished Goods [Member]
Inventory [Line Items]
Reserve of obsolete and slow moving inventories	$ 2.0	$ 1.7

Amount of valuation reserve for inventory.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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Reference 4: http://www.xbrl.org/2003/role/presentationRef

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Reference 5: http://www.xbrl.org/2003/role/presentationRef

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Reference 6: http://www.xbrl.org/2003/role/presentationRef

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-Number 210

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant