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Consolidated Balance Sheets (Parenthetical) (USD $)
Feb. 28, 2015
Nov. 30, 2014
Consolidated Balance Sheets    
Common stock, par value (in dollars per share) $ 0.01us-gaap_CommonStockParOrStatedValuePerShare $ 0.01us-gaap_CommonStockParOrStatedValuePerShare
Common stock, shares authorized 10,000,000us-gaap_CommonStockSharesAuthorized 10,000,000us-gaap_CommonStockSharesAuthorized
Common stock, shares issued 5,537,895us-gaap_CommonStockSharesIssued 5,537,895us-gaap_CommonStockSharesIssued
Common stock, shares outstanding 5,149,574us-gaap_CommonStockSharesOutstanding 5,149,574us-gaap_CommonStockSharesOutstanding
Treasury stock, shares 388,321us-gaap_TreasuryStockShares 388,321us-gaap_TreasuryStockShares