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Note 1 - Nature of Operations and Summary of Significant Accounting Policies (Details) (USD $)
3 Months Ended 6 Months Ended
Aug. 31, 2013
Aug. 31, 2012
Aug. 31, 2013
Aug. 31, 2012
Note 1 - Nature of Operations and Summary of Significant Accounting Policies (Details) [Line Items]        
Equity Method Investment, Ownership Percentage 60.00%   60.00%  
Number of Operating Segments     3  
Share-based Compensation $ 125,653 $ 94,867 $ 268,462 $ 229,900
Stock Issued During Period, Shares, Share-based Compensation, Gross (in Shares) 0   4,000 4,000
Stock Issued During Period, Value, Share-based Compensation, Gross     48,400 37,200
Stock Issued During Period, Shares, Restricted Stock Award, Gross (in Shares) 41,390 44,190    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in Shares)       0
Restricted Stock Units (RSUs) [Member]
       
Note 1 - Nature of Operations and Summary of Significant Accounting Policies (Details) [Line Items]        
Share-based Compensation 125,653   220,061  
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized   $ 3,500,868   $ 3,500,868
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition     5 years 6 months  
Restricted Stock Units (RSUs) [Member] | Minimum [Member]
       
Note 1 - Nature of Operations and Summary of Significant Accounting Policies (Details) [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage 17.00%      
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period 5 years      
Restricted Stock Units (RSUs) [Member] | Maximum [Member]
       
Note 1 - Nature of Operations and Summary of Significant Accounting Policies (Details) [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage 20.00%      
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period 6 years