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Note 14 - Equity Incentive Plan and Stock Based Compensation (Details Textual) - USD ($)
3 Months Ended 15 Months Ended
Feb. 28, 2018
Feb. 28, 2017
Feb. 28, 2018
Jan. 27, 2011
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross 0 0    
Non-qualified Stock Units to Non-employee Directors Annually or Upon Election [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized 1,000   1,000 1,000
Restricted Stock [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period 3 years      
Allocated Share-based Compensation Expense $ 49,558   $ 26,557  
Restricted Stock [Member] | Employees, Directors, and Consultants [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period 45,000      
Restricted Stock [Member] | Director [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period 6,000