Note 2 - Segment Information (Details) - Reconciliation to Loss Before Provision for Income Taxes (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Reconciliation to Loss Before Provision for Income Taxes [Abstract]
Operating loss	$ (7,444)	$ (8,477)
Interest expense, net	(191)	(499)
Debt cost expense	(43)	(272)
Loss on extinguishment of debt		(1,244)
Other, net	(24)	(53)
Loss before provision for income taxes	$ (7,702)	$ (10,545)