Allowance for Credit Losses (Details Textuals) (USD $) In Thousands	9 Months Ended
Sep. 30, 2011	Dec. 31, 2010
Allowance for credit losses (Textuals)
Period required for considering financing receivable as non accrual status	greater than 60 days
The recorded investment in past-due finance lease receivables on nonaccrual status	$ 971	$ 531
Interest accrued in the recorded investment in finance lease receivable	1,491	560
The recorded investment in impaired notes receivable	1,840	7,513
The recorded investment in impaired notes related allowance	$ 1,840	$ 470

Period required for considering financing receivable as non accrual status.

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- Details

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- Definition

Recorded investment in financing receivables that are 90 days or more past due and still accruing.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 7

-URI http://asc.fasb.org/extlink&oid=6965416&loc=d3e5111-111524

-Subparagraph (d)

+ Details

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

- Definition

Recorded investment in financing receivables that are on nonaccrual status as of the balance sheet date.

+ References

+ Details

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

- 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
Period Type:	instant

- Definition

Amount of allowance for credit losses related to recorded investment.

+ 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 (a)(3)

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant