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Note 11 - Employee and Non-Employee Stock Options (Details) (USD $)
12 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Mar. 31, 2014
Employee and Non-Employee Director Options [Member]
Mar. 31, 2013
Employee and Non-Employee Director Options [Member]
Mar. 31, 2012
Common Stock [Member]
Mar. 31, 2014
Employee [Member]
Per Year [Member]
Mar. 31, 2014
Director [Member]
Note 11 - Employee and Non-Employee Stock Options (Details) [Line Items]              
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross 10,000 12,500     256,000    
Exercise Price to Fair Market Value         100.00%    
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant 135,000            
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights           one-third  
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period             1 year
Allocated Share-based Compensation Expense (in Dollars)     $ 23,200 $ 13,000      
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options (in Dollars) $ 9,000 $ 10,700          
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested, Number of Shares 12,500            
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number of Shares 10,000