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Note 9 - Fair Value of Financial Instruments (Tables)
12 Months Ended
Mar. 31, 2014
Fair Value Disclosures [Abstract]  
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]
   

Fair Value Measurements at March 31,

 
   

2014

   

2013

 
                 

Marketable securities

  $ 1,460,518     $ -