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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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

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Note 12 - Income Taxes (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Note 12 - Income Taxes (Details) [Line Items]
Valuation Allowance, Deferred Tax Asset, Change in Amount	$ 22.0	$ 8.9
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	34.00%	34.00%	34.00%
Internal Revenue Service (IRS) [Member] \| Subject To Limitations [Member]
Note 12 - Income Taxes (Details) [Line Items]
Operating Loss Carryforwards	75.0
Internal Revenue Service (IRS) [Member] \| Research Tax Credit Carryforward [Member]
Note 12 - Income Taxes (Details) [Line Items]
Tax Credit Carryforward, Amount	2.2
Internal Revenue Service (IRS) [Member]
Note 12 - Income Taxes (Details) [Line Items]
Operating Loss Carryforwards	80.1
State and Local Jurisdiction [Member] \| Subject To Limitations [Member]
Note 12 - Income Taxes (Details) [Line Items]
Operating Loss Carryforwards	74.0
State and Local Jurisdiction [Member] \| Research Tax Credit Carryforward [Member]
Note 12 - Income Taxes (Details) [Line Items]
Tax Credit Carryforward, Amount	3.9
State and Local Jurisdiction [Member]
Note 12 - Income Taxes (Details) [Line Items]
Operating Loss Carryforwards	$ 79.1