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Note 1 - Summary of Significant Accounting Policies (Details) - Amortization of Intangible Assets Lives	12 Months Ended
	Dec. 31, 2014
Technology And Drawings [Member] | Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite Lived Intangible Assets Useful Life	13 years
Technology And Drawings [Member] | Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite Lived Intangible Assets Useful Life	20 years
Customer Relationships [Member] | Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite Lived Intangible Assets Useful Life	9 years
Customer Relationships [Member] | Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite Lived Intangible Assets Useful Life	15 years
Other Intangible Assets [Member] | Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite Lived Intangible Assets Useful Life	2 years
Other Intangible Assets [Member] | Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite Lived Intangible Assets Useful Life	18 years

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- Details

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X

- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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