Financial Instruments (Details 5) (Net Financed Sales Receivables [Member], USD $) In Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2011	Jun. 30, 2011
Net Financed Sales Receivables [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	$ 232	$ 232
Unpaid Principal	195	195
Related Allowance	(66)	(66)
Average Recorded Investment	232	232
Interest Income Recognized	$ 0	$ 0

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

The average recorded investment related to impaired financing receivables.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=6965416&loc=d3e5212-111524
-Subparagraph (c)(1)

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 17
-URI http://asc.fasb.org/extlink&oid=6965416&loc=d3e5258-111524

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The interest income recognized during the time within that period that the financing receivables were impaired.

+ References

+ Details

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Balance Type:	credit
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- Definition

The recorded investment related to impaired financing receivables.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 14A
-URI http://asc.fasb.org/extlink&oid=6965416&loc=SL6953550-111524
-Subparagraph (b)

+ Details

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Balance Type:	debit
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- Definition

Amount of allowance for credit losses related to recorded investment.

+ References

+ Details

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- Definition

The unpaid principal balance related to impaired financing receivables.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (a)(4)
-URI http://asc.fasb.org/extlink&oid=6965416&loc=d3e5212-111524

+ Details

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