Note 13 - Income Taxes - Components of Income Tax Benefit (Expense) (Details) - Scenario, Unspecified [Domain] - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Current:
Federal	$ (12)	$ 19	$ (52)
State	(78)	(43)	(19)
Total current	(90)	(24)	(71)
Deferred:
Federal	(170)	(25)	1,917
State	7	(43)	204
Total deferred	(163)	(68)	2,121
Income tax (expense) benefit	$ (253)	$ (92)	$ 2,050