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Note 6 - Income Taxes (Detail) (USD $) In Millions, unless otherwise specified	Mar. 31, 2013
Deferred Tax Assets, Operating Loss Carryforwards, Domestic	$ 446
Deferred Tax Assets, Operating Loss Carryforwards, State and Local	$ 40

- Definition

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible domestic operating loss carryforwards. Excludes state and local operating loss carryforwards.

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- Definition

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible state and local operating loss carryforwards.

+ References+ Details