Note 6 - Convetible Debt - Related Party (Details) (USD $)							12 Months Ended	1 Months Ended			12 Months Ended
	Mar. 31, 2014	Mar. 13, 2014	Jan. 21, 2014	Nov. 26, 2013	Oct. 07, 2013	Mar. 31, 2013	Mar. 31, 2014 The 2013 Note [Member] Convertible Debt [Member]	Sep. 25, 2013 The 2013 Note [Member]	Mar. 31, 2014 The 2013 Note [Member]	Sep. 30, 2011 Replacement Note [Member] Board of Directors Chairman [Member]	Mar. 31, 2014 Replacement Note [Member]	Sep. 19, 2012 Replacement Note [Member]	Jul. 25, 2012 Replacement Note [Member]	Mar. 31, 2014 The Original Agreement [Member] Board of Directors Chairman [Member]	Mar. 31, 2014 The Original Agreement [Member]	Mar. 31, 2014 The Letter Agreement [Member]	Mar. 31, 2014 Convertible Debt [Member]
Note 6 - Convetible Debt - Related Party (Details) [Line Items]
Notes Payable, Related Parties								$ 3,500,000
Related Party Transaction, Rate								1.66%			0.84%
Debt Instrument, Convertible, Conversion Price (in Dollars per share)		$ 1.54	$ 1.39	$ 1.01	$ 0.95			$ 0.89			$ 1.20
Convertible Debt	3,500,000	500,000	1,000,000	1,000,000	1,000,000				3,500,000
Debt Instrument, Unamortized Discount							1,086,000										1,086,000
Debt Instrument, Convertible, Remaining Discount Amortization Period							4 years 6 months
Convertible Debt, Noncurrent	22,414,000					17,000,000				15,000,000		20,000,000
Notes Payable, Related Parties, Additional Borrowings Increase (Decrease)													5,000,000
Due to Related Parties											20,000,000
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in Shares)														1,880,620
Fair Value Assumptions, Exercise Price (in Dollars per share)															$ 1.86
Deferred Costs, Noncurrent												1,200,000
Accrued Liabilities, Current	918,000					728,000					253,000
Long Term Debt Maximum Amount Lender Agreed To Provide Financial Assistance																$ 5,000,000