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Note 11 - Income Taxes - Effecitve Rate Reconciliation (Details)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Note 11 - Income Taxes - Effecitve Rate Reconciliation Details
Statutory income tax rate	34.00%	34.00%
(Increase) decrease in tax provision resulting from:
Equity compensation	2.20%	(12.90%)
Income tax credits	(4.50%)	4.20%
Foreign tax rates	(2.20%)	(1.90%)
Release of unrecognized tax benefits	(231.60%)	0.00%
Valuation allowance	210.90%	(36.60%)
Other	1.00%	(1.70%)
Effective income tax rates	9.80%	(14.90%)

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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

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