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Note 5 - Income Taxes (Tables) | 6 Months Ended
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Jun. 30, 2016
Notes Tables |
Schedule of Income Tax Provisions and Rates [Table Text Block] |
| Three months ended June 30, |  | Six months ended June 30,
| 2016 |  | 2015 |  | 2016 |  | 2015
Benefit (provision) for income taxes | $ | 504 |  | $ | (110) |  | $ | 808 |  | $ | (196)
Effective tax rate |  | (29.6%) |  |  | 18.2% |  |  | (78.4%) |  |  | 17.8%

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- Definition Tabular disclosure of the provision for income taxes and the related effective income tax rates. + References No definition available. + Details
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- References No definition available. + Details
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