Note 15 - Shareholders' Equity (Details) (USD $)	1 Months Ended	12 Months Ended			0 Months Ended
	Oct. 31, 2013	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012	Jun. 03, 2014 Subsequent Event [Member] Series C Preferred Stock [Member]	Jun. 03, 2014 Subsequent Event [Member]
Note 15 - Shareholders' Equity (Details) [Line Items]
Preferred Stock, Shares Authorized		10,000,000
Preferred Stock, Par or Stated Value Per Share (in Dollars per share)		$ 0
Preferred Stock, Shares Issued		0
Preferred Stock, Shares Outstanding		0
Stock Issued During Period, Value, New Issues (in Dollars)		$ 21,787,000			$ 10,000,000
Stock Issued During Period, Shares, New Issues	8,000,000				3,333,333
Class of Warrant or Right, Term						5 years
Class of Warrant or Right, Number of Securities Called by Warrants or Rights						833,333
Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per Item)						3.50
Proceeds from Issuance of Preferred Stock, Preference Stock, and Warrants (in Dollars)					10,000,000
Sale of Stock, Price Per Share (in Dollars per share)	$ 3.00
Proceeds from Issuance of Common Stock (in Dollars)	$ 21,800,000	$ 21,787,000
Stock Repurchased During Period, Shares		0	0	0