Note 19 - Income Taxes (Detail) (USD $)	Mar. 31, 2013
Deferred Tax Assets, Gross	$ 464,000,000
Deferred Tax Assets, Valuation Allowance	22,700,000
Deferred Tax Assets, Operating Loss Carryforwards	285,600,000
Gross Annual Deduction Limitation on Net Operating Loss Carryforwards	15,600,000
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	13,500,000
Subject to Federal and State Net Operating Loss Carryforward Limitations [Member]
Deferred Tax Assets, Operating Loss Carryforwards	149,600,000
Deferred Tax Assets, Operating Loss Carryforwards, Domestic, Before Tax	366,000,000
Deferred Tax Assets, Operating Loss Carryforwards, State and Local, Before Tax	429,200,000
Not Limited by Section 382 [Member]
Deferred Tax Assets, Operating Loss Carryforwards	136,000,000
Deferred Tax Assets, Operating Loss Carryforwards, Domestic, Before Tax	282,100,000
Deferred Tax Assets, Operating Loss Carryforwards, State and Local, Before Tax	$ 696,200,000