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Derivative Financial Instruments and Hedging Activities (Details Textual)	3 Months Ended
	Mar. 31, 2013 USD ($)	Mar. 31, 2012 USD ($)	Mar. 31, 2013 Designated as Hedging Instrument [Member] USD ($)	Mar. 31, 2013 Designated as Hedging Instrument [Member] CAD	Dec. 31, 2012 Designated as Hedging Instrument [Member] USD ($)	Dec. 31, 2012 Designated as Hedging Instrument [Member] CAD	Mar. 31, 2013 Not Designated as Hedging Instrument [Member] USD ($)	Mar. 31, 2013 Not Designated as Hedging Instrument [Member] CAD	Dec. 31, 2012 Not Designated as Hedging Instrument [Member] USD ($)	Dec. 31, 2012 Not Designated as Hedging Instrument [Member] CAD
Derivatives, Fair Value [Line Items]
Notional amount of Canadian forward contracts			$ 11,100,000	11,300,000	$ 12,400,000	12,300,000	$ 500,000	500,000	$ 2,700,000	2,600,000
Derivative Instruments and Hedging Activities (Textual) [Abstract]
Unrealized pretax gain on outstanding derivatives accumulated in other comprehensive loss expected to be reclassified within 12 months	40,000
Losses from derivative contracts not designated as hedging instruments recognized in net sales	$ 100,000	$ 100,000

X

- Definition

Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Article 12

-Section 13

-Sentence Column B

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- Definition

Net gain (loss) from the increase (decrease) in fair value of derivative instrument not designated as hedging instrument.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4C

-Subparagraph (e)

-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624171-113959



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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 133

-Paragraph 45

-Subparagraph b(1)(b)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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- Definition

The estimated net amount of unrealized gains or losses on foreign currency cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 30

-Section 50

-Paragraph 1

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=7668309&loc=d3e80748-113994



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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 133

-Paragraph 45

-Subparagraph b(2)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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