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Information Relative to Outstanding VIE Debt (Detail) (USD $) | Oct. 31, 2011 | Oct. 31, 2011 Teachers Federal Credit Union Variable Interest Entity | Jan. 31, 2010 Teachers Federal Credit Union Variable Interest Entity | Oct. 31, 2011 Small Business Administration Variable Interest Entity | Sep. 30, 2010 Small Business Administration Variable Interest Entity
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Variable Interest Entity [Line Items] |  |  |  |  |
Mortgage payable | $ 1,394,230 | $ 777,155 | $ 800,000 | $ 617,075 | $ 643,000

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- Definition Carrying value as of the balance sheet date of the portion of long-term, collateralized debt obligations due within one year or the operating cycle, if longer. Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.20) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 20 -Article 5 + Details
Name: | us-gaap_SecuredDebtCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration