Note 14 - Income Taxes (Details) - Reconciliation of Income Tax Expense (Benefit) to Statutory Federal Rate	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
Reconciliation of Income Tax Expense (Benefit) to Statutory Federal Rate [Abstract]
Expected federal income tax at statutory rate	34.00%	34.00%	34.00%
State income taxes, net of federal tax effect	0.50%	0.40%	0.70%
Valuation allowance	(33.60%)	(207.10%)	(138.70%)
Permanent differences	(0.40%)	(7.60%)	(0.30%)
Return to provision	(1.50%)	(6.10%)	(8.20%)
Rate change	0.20%	(0.10%)
Other	(3.00%)	(1.40%)	1.00%
Effective tax rate (continuing operations)	(3.80%)	(187.90%)	(111.50%)