Note 14 - Other Matters (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2014 acre
Note 14 - Other Matters (Details) [Line Items]
Change in Control of Beneficial Ownership	20.00%
Executive Termination Severance Payment Multiplier	2.99
Area of Real Estate Property (in Acres)	25
Loss Contingency Accrual	$ 4,200
Future Event December 7, 2014 Through December 7, 2017 [Member] | Indemnitor [Member]
Note 14 - Other Matters (Details) [Line Items]
Letters of Credit Outstanding, Amount	1,000
Indemnitor [Member]
Note 14 - Other Matters (Details) [Line Items]
Letters of Credit Outstanding, Amount	2,000
Seven Executive Officers and a Vice President [Member] | Employee Severance [Member]
Note 14 - Other Matters (Details) [Line Items]
Employee-related Liabilities	$ 12,556