Note 7 - Income Taxes (Details) (USD $)	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013
Note 7 - Income Taxes (Details) [Line Items]
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount	$ 6,667,000	$ 5,231,000
Unrecognized Tax Benefits	2,800,000us-gaap_UnrecognizedTaxBenefits
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	0
Deferred Tax Assets, Net	0us-gaap_DeferredTaxAssetsLiabilitiesNet
Earliest Tax Year [Member] \| Domestic Tax Authority [Member] \| Internal Revenue Service (IRS) [Member]
Note 7 - Income Taxes (Details) [Line Items]
Open Tax Year	2011
Earliest Tax Year [Member] \| State and Local Jurisdiction [Member] \| California Franchise Tax Board [Member]
Note 7 - Income Taxes (Details) [Line Items]
Open Tax Year	2010
Latest Tax Year [Member] \| Domestic Tax Authority [Member] \| Internal Revenue Service (IRS) [Member]
Note 7 - Income Taxes (Details) [Line Items]
Open Tax Year	2014
Latest Tax Year [Member] \| State and Local Jurisdiction [Member] \| California Franchise Tax Board [Member]
Note 7 - Income Taxes (Details) [Line Items]
Open Tax Year	2014
Domestic Tax Authority [Member] \| Internal Revenue Service (IRS) [Member]
Note 7 - Income Taxes (Details) [Line Items]
Operating Loss Carryforwards	220,600,000
Open Tax Period	3 years
State and Local Jurisdiction [Member] \| California Franchise Tax Board [Member]
Note 7 - Income Taxes (Details) [Line Items]
Operating Loss Carryforwards	$ 127,700,000
Open Tax Period	4 years

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The period of time that certain aspects of a business may be under review for tax purposes.

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Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards, net of deferred tax liability attributable to taxable temporary differences.

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Tax year that remains open to examination under enacted tax laws, in CCYY format.

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Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns.

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The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.

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Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset.

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