Note 14 - Income Taxes (Details) (USD $)	3 Months Ended	12 Months Ended
	Jun. 30, 2013	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
Note 14 - Income Taxes (Details) [Line Items]
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest		$ (7,579,000)	$ (6,223,000)	$ (9,978,000)
Discontinued Operation, Tax Effect of Income (Loss) from Discontinued Operation During Phase-out Period		27,000	137,000	(552,000)
Effective Income Tax Rate Reconciliation, Discontinued Operations, Percent		0.10%
Operating Loss Carryforwards		100,800,000	82,800,000
Deferred Tax Assets, Net, Before Valuation Allowance		38,183,000	29,029,000
Deferred Tax Assets, Valuation Allowance		39,462,000	30,308,000
Unrecognized Tax Benefits, Interest on Income Taxes Accrued		182,000	152,000
Unrecognized Tax Benefits that Would Impact Effective Tax Rate		555,000	499,000
Unrecognized Tax Benefits, Period Increase (Decrease)		(140,000)
Change in Net Operating Loss Carryforward, Tax Examination	(2,200,000)
Foreign Tax Credit [Member]
Note 14 - Income Taxes (Details) [Line Items]
Tax Credit Carryforward, Amount		$ 413,000	$ 413,000