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Note 5 - Income Taxes (Details) (USD $)	12 Months Ended
Note 5 - Income Taxes (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Note 5 - Income Taxes (Details) [Line Items]
Deferred Tax Assets, Operating Loss Carryforwards	$ 17,934,000	$ 16,323,000
Income Tax Expense (Benefit)	38,000us-gaap_IncomeTaxExpenseBenefit	46,000us-gaap_IncomeTaxExpenseBenefit	12,000us-gaap_IncomeTaxExpenseBenefit
Liability for Uncertain Tax Positions, Current	810,000	885,000
Potential Liability [Member] \| Ministry of the Economy, Finance and Industry, France [Member]
Note 5 - Income Taxes (Details) [Line Items]
Liability for Uncertain Tax Positions, Current	673,000	756,000
Possible Interest [Member] \| Ministry of the Economy, Finance and Industry, France [Member]
Note 5 - Income Taxes (Details) [Line Items]
Liability for Uncertain Tax Positions, Current	113,000	102,000
Potential Penalty [Member] \| Ministry of the Economy, Finance and Industry, France [Member]
Note 5 - Income Taxes (Details) [Line Items]
Liability for Uncertain Tax Positions, Current	24,000	27,000
Domestic Tax Authority [Member]
Note 5 - Income Taxes (Details) [Line Items]
Operating Loss Carryforwards	52,600,000
State and Local Jurisdiction [Member]
Note 5 - Income Taxes (Details) [Line Items]
Operating Loss Carryforwards	3,800,000
Foreign Tax Authority [Member] \| Ministry of the Economy, Finance and Industry, France [Member]
Note 5 - Income Taxes (Details) [Line Items]
Liability for Uncertain Tax Positions, Current	80,000	80,000
Foreign Tax Authority [Member]
Note 5 - Income Taxes (Details) [Line Items]
Income Tax Expense (Benefit)	0
French Subsidiary [Member]
Note 5 - Income Taxes (Details) [Line Items]
Effective Income Tax Rate Reconciliation, Tax Credit, Foreign, Amount	337,000
Income Tax Expense (Benefit)	0
Non-qualified Option Deductions [Member]
Note 5 - Income Taxes (Details) [Line Items]
Deferred Tax Assets, Operating Loss Carryforwards	3,600,000
Ministry of the Economy, Finance and Industry, France [Member]
Note 5 - Income Taxes (Details) [Line Items]
Liability for Uncertain Tax Positions, Current	810,000	885,000
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	$ 810,000