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Note 8 - Income Taxes - Provison (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Note 8 - Income Taxes - Provison Details
Current federal tax provision	$ 0us-gaap_CurrentFederalTaxExpenseBenefit	$ 0us-gaap_CurrentFederalTaxExpenseBenefit
Current state tax provision	12us-gaap_CurrentStateAndLocalTaxExpenseBenefit	0us-gaap_CurrentStateAndLocalTaxExpenseBenefit
Current foreign tax provision	65us-gaap_CurrentForeignTaxExpenseBenefit	94us-gaap_CurrentForeignTaxExpenseBenefit
Total current tax provision	77us-gaap_CurrentIncomeTaxExpenseBenefit	94us-gaap_CurrentIncomeTaxExpenseBenefit
Deferred federal tax provision	220us-gaap_DeferredFederalIncomeTaxExpenseBenefit	220us-gaap_DeferredFederalIncomeTaxExpenseBenefit
Deferred state tax provision	0us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit	0us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit
Deferred foreign tax provision (benefit)	(29)us-gaap_DeferredForeignIncomeTaxExpenseBenefit	(75)us-gaap_DeferredForeignIncomeTaxExpenseBenefit
Total deferred tax provision (benefit)	191us-gaap_DeferredIncomeTaxExpenseBenefit	145us-gaap_DeferredIncomeTaxExpenseBenefit
Total income tax provision	$ 268us-gaap_IncomeTaxExpenseBenefit	$ 239us-gaap_IncomeTaxExpenseBenefit

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