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Rescission Liabilities - Additional Information (Detail) (USD $)
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12 Months Ended | |||||
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Nov. 30, 2013
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May 31, 2013
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May 31, 2012
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May 31, 2013
Director
Y
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May 31, 2013
Scenario, Previously Reported
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May 31, 2013
Federal and State [Member]
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| Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items] | ||||||
| Estimated liability for potential claim | $ 6,400,000 | |||||
| Rescission liability | 536,500 | 536,500 | 3,749,000 | 537,000 | ||
| Personal Services Agreement | 7 | |||||
| Compensation | 200,000 | |||||
| Incentive compensation | 50,000 | |||||
| Capital received | $ 500,000 | |||||
| X | ||||||||||
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- Definition
Capital received. No definition available.
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| X | ||||||||||
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- Definition
Personal services agreement. No definition available.
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
The maximum number of shares authorized for issuance under the deferred compensation arrangement as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Carrying amount of reserve for known or estimated probable loss from litigation, which may include attorneys' fees and other litigation costs, which is expected to be paid within one year of the date of the statement of financial position. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The estimated maximum amount of possible loss from the contingency. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Expenditures for salaries other than officers. Does not include allocated share-based compensation, pension and post-retirement benefit expense or other labor-related non-salary expense. For commercial and industrial companies, excludes any direct and overhead labor that is included in cost of goods sold. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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