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Note 5 - Income Taxes (Detail) (USD $)	3 Months Ended	12 Months Ended
Note 5 - Income Taxes (Detail) (USD $)	Dec. 31, 2010	Dec. 31, 2011	Dec. 31, 2012	Dec. 31, 2009
Deferred Tax Assets, Valuation Allowance	$ 19,073,000	$ 22,895,000	$ 23,030,000	$ 104,429,000
Valuation Allowance, Deferred Tax Asset, Change in Amount	88,000,000	71,000,000
Deferred Tax Assets, Tax Credit Carryforwards, Alternative Minimum Tax		15,210,000	24,603,000
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Employee Compensation		20,000,000	19,000,000
Domestic Tax Authority [Member]
Operating Loss Carryforwards			146,000,000
State and Local Jurisdiction [Member]
Operating Loss Carryforwards			25,000,000
Foreign Tax Authority [Member]
Operating Loss Carryforwards			$ 68,000,000

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from employee compensation.

Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

The amount of the change in the period in the valuation allowance for a specified deferred tax asset.