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Note 2 - Allowance for Doubtful Accounts (Detail) - Activity in the allowance for doubtful accounts (USD $)	12 Months Ended
	Nov. 30, 2012	Nov. 30, 2011
Balance	$ 49,583	$ 114,834
Provision charged to expense	(7,654)	(19,995)
Less amounts charged-off	(13,971)	(45,256)
Balance	$ 27,958	$ 49,583

Amount of the current period expense charged against operations, the offset which is generally to the allowance for doubtful accounts for the purpose of reducing receivables, including notes receivable, to an amount that approximates their net realizable value (the amount expected to be collected).

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