Consolidated Balance Sheets (Parentheticals) (USD $)	Nov. 30, 2014	Nov. 30, 2013
Allowance for doubtful accounts	$ 35,175	$ 35,474
Undesignated preferred stock - par value (in dollars per share)	$ 0.01	$ 0.01
Undesignated preferred stock - authorized shares (in shares)	500,000us-gaap_PreferredStockSharesAuthorized	500,000us-gaap_PreferredStockSharesAuthorized
Undesignated preferred stock - issued shares (in shares)	0us-gaap_PreferredStockSharesIssued	0us-gaap_PreferredStockSharesIssued
Undesignated preferred stock - outstanding shares (in shares)	0us-gaap_PreferredStockSharesOutstanding	0us-gaap_PreferredStockSharesOutstanding
Common stock – par value (in dollars per share)	$ 0.01	$ 0.01
Common stock – authorized shares (in shares)	9,500,000us-gaap_CommonStockSharesAuthorized	9,500,000us-gaap_CommonStockSharesAuthorized
Common stock – issued shares (in shares)	4,048,552us-gaap_CommonStockSharesIssued	4,046,552us-gaap_CommonStockSharesIssued
Common stock – outstanding shares (in shares)	4,048,552us-gaap_CommonStockSharesOutstanding	4,046,552us-gaap_CommonStockSharesOutstanding

A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible.

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