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Note 6 - Stockholders' Equity (Detail) - Allocation of Net Proceeds from Preferred Stock Financing (USD $)
 9 Months Ended 12 Months Ended 138 Months Ended
Dec. 31, 2012
Dec. 31, 2012
Dec. 31, 2012
Mar. 31, 2012
Net proceeds after transaction costs $ 1,999,032 $ 1,999,032 $ 2,727,475  
Less: Fair value of warrants (recorded to Additional Paid-in Capital) (1,127,418)      
Beneficial conversion feature (recorded to Additional Paid-in Capital) (762,667)      
Net proceeds allocated to preferred stock 108,947      
Accretion of beneficial conversion feature (deemed dividend) 762,667      
Carrying value 312,196 312,196 312,196 871,614
Conversions to common stock $ (559,418)