Note 8 - Common Stock (Details) (USD $)	1 Months Ended	12 Months Ended		25 Months Ended
	Apr. 27, 2012	Mar. 31, 2014	Mar. 31, 2013	Apr. 27, 2014	Jul. 26, 2012
Note 8 - Common Stock (Details) [Line Items]
Maximum Amount Common Stock Available to Sell in Purchase Agreement	$ 15,000,000	$ 21,000,000
Common Stock, Other Value, Outstanding	75,000,000
Fair Value Assumptions, Expected Term				3 years
Sale of Stock, Price Per Share (in Dollars per share)					$ 3.00
Proceeds from Sale of Treasury Stock	1,000,000
Stock Issued During Period, Shares, New Issues (in Shares)	175,333
Stock Issued During Period, Shares, Conversion of Convertible Securities (in Shares)		230,000
Debt Issuance Cost		122,000
Proceeds from Issuance of Common Stock		0	878,000
Commitment Shares [Member]
Note 8 - Common Stock (Details) [Line Items]
Stock Issued During Period, Value, Conversion of Convertible Securities		1,000,000
Lincoln Park Capital Fund, LLC [Member]
Note 8 - Common Stock (Details) [Line Items]
Stock Issued During Period, Shares, New Issues (in Shares)	175,333
Maximum [Member]
Note 8 - Common Stock (Details) [Line Items]
Stock Issued During Period, Shares, New Issues (in Shares)	215,000
Stock Issued During Period, Value, Conversion of Convertible Securities		$ 15,000,000