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Note 1 - Summary of Useful Lives Used in Computing Depreciation and Amortization (Details)	12 Months Ended
	Dec. 31, 2015
Building [Member]
Property, plant and equipment, useful life	39 years
Equipment [Member] | Minimum [Member]
Property, plant and equipment, useful life	5 years
Equipment [Member] | Maximum [Member]
Property, plant and equipment, useful life	15 years
Land Improvements [Member] | Minimum [Member]
Property, plant and equipment, useful life	5 years
Land Improvements [Member] | Maximum [Member]
Property, plant and equipment, useful life	15 years
Furniture and Fixtures [Member] | Minimum [Member]
Property, plant and equipment, useful life	3 years
Furniture and Fixtures [Member] | Maximum [Member]
Property, plant and equipment, useful life	10 years
Leasehold Improvements [Member] | Minimum [Member]
Property, plant and equipment, useful life	3 years
Leasehold Improvements [Member] | Maximum [Member]
Property, plant and equipment, useful life	10 years
Other Transportation Equipment [Member]
Property, plant and equipment, useful life	5 years

X

- Definition

Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

+ References

No definition available.

+ Details

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Period Type:	duration

X

- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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X

- Details

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