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Note 12 - Equity Incentive Plan (Details Textual) - USD ($)
12 Months Ended
Nov. 30, 2015
Nov. 30, 2014
Non Qualified Options to Each Director Annually or Upon Election [Member]    
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized 2,000  
Employee Stock Option [Member]    
Allocated Share-based Compensation Expense $ 8,022 $ 11,264
Restricted Stock [Member]    
Allocated Share-based Compensation Expense $ 20,462 $ 3,240
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period 12,500 0
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period 4,150 500
Employee Service Share-based Compensation, Allocation of Recognized Period Costs, Capitalized Amount $ 0 $ 0
Allocated Share-based Compensation Expense 28,484 14,504
Employee Service Share-based Compensation, Tax Benefit from Compensation Expense $ 20,462 $ 10,500
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value $ 0.84 $ 1.17
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized $ 3,881  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value 0 $ 0
Proceeds from Stock Options Exercised $ 0 $ 7,760
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period 14,000  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period 14,000