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Note 11 - Income Taxes (Details) - Components of Income Tax Provision (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Current:
Federal									$ 18us-gaap_CurrentFederalTaxExpenseBenefit	$ 77us-gaap_CurrentFederalTaxExpenseBenefit	$ 840us-gaap_CurrentFederalTaxExpenseBenefit
State									(28)	67	3
Foreign									943us-gaap_CurrentForeignTaxExpenseBenefit	1,053us-gaap_CurrentForeignTaxExpenseBenefit	1,302us-gaap_CurrentForeignTaxExpenseBenefit
Deferred:
Foreign									(36)	(88)	(11)
Total income tax provision	$ 712us-gaap_IncomeTaxExpenseBenefit	$ (573)us-gaap_IncomeTaxExpenseBenefit	$ 502us-gaap_IncomeTaxExpenseBenefit	$ 257us-gaap_IncomeTaxExpenseBenefit	$ 484us-gaap_IncomeTaxExpenseBenefit	$ 1,187us-gaap_IncomeTaxExpenseBenefit	$ (357)us-gaap_IncomeTaxExpenseBenefit	$ (204)us-gaap_IncomeTaxExpenseBenefit	$ 897us-gaap_IncomeTaxExpenseBenefit	$ 1,109us-gaap_IncomeTaxExpenseBenefit	$ 2,134us-gaap_IncomeTaxExpenseBenefit

Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations.

Amount of current state and local tax expense (benefit) pertaining to income (loss) from continuing operations.

Amount of deferred foreign income tax expense (benefit) pertaining to income (loss) from continuing operations.