Note 12 - Subsequent Event (Details) (Subsequent Event [Member], Sensima Technology SA [Member], USD $) In Millions, unless otherwise specified	1 Months Ended
Jul. 31, 2014
Note 12 - Subsequent Event (Details) [Line Items]
Payments to Acquire Businesses, Gross	$ 11.7
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High	8.9
Time Base Restricted Unit [Member]
Note 12 - Subsequent Event (Details) [Line Items]
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable	1.7
Performance Based Restricted Stock Unit [Member]
Note 12 - Subsequent Event (Details) [Line Items]
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable	$ 8.0

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Amount of equity interests of the acquirer, including instruments or interests issued or issuable in consideration for the business combination.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 30

-Paragraph 7

-URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6578-128477

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- Definition

For contingent consideration arrangements recognized in connection with a business combination, this element represents an estimate of the high-end of the potential range (undiscounted) of the consideration which may be paid.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 50

-Paragraph 1

-Subparagraph (c)(3)

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- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Investing Activities

-URI http://asc.fasb.org/extlink&oid=6516133

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

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-Paragraph 13

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