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Note 20 - Financial Instruments (Details Textual) $ in Millions	12 Months Ended
	Dec. 31, 2016 USD ($)
Number of Interest Rate Derivatives Held	0
Contingent Consideration Liability [Member]
Fair Value Inputs, Weighted Average Discount Rate Increase	2.00%
Reduction in Fair Value of Contingent Consideration Liability	$ 1
Contingent Consideration Liability [Member] | Minimum [Member]
Fair Value Inputs, Discount Rate	4.00%
Fair Value Inputs, Discount Rate Data Point Concentration	9.40%
Contingent Consideration Liability [Member] | Maximum [Member]
Fair Value Inputs, Discount Rate	10.10%
Fair Value Inputs, Discount Rate Data Point Concentration	10.10%
Contingent Consideration Liability [Member] | Weighted Average [Member]
Fair Value Inputs, Discount Rate	9.30%

X

- Definition

A data point concentration of the interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt.

+ References

No definition available.

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X

- Definition

Increase in the weighted average interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt.

+ References

No definition available.

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- Definition

Amount of contingent consideration liability reduced by increase in the weighted average discount rate.

+ References

No definition available.

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X

- Definition

Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)
-URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258

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- Definition

Number of interest rate derivative instruments held by the entity at the reporting date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5580258-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5579245-113959

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