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Note 2 - Property, Plant and Equipment, Estimated Useful Lives (Details) | 12 Months Ended
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Dec. 31, 2015
Building and Building Improvements [Member] | Minimum [Member] |
Property and equipment, useful lives | 5 years
Building and Building Improvements [Member] | Maximum [Member] |
Property and equipment, useful lives | 40 years
Furniture and Fixtures [Member] | Minimum [Member] |
Property and equipment, useful lives | 1 year
Furniture and Fixtures [Member] | Maximum [Member] |
Property and equipment, useful lives | 15 years
Leasehold Improvements [Member] | Minimum [Member] |
Property and equipment, useful lives | 1 year
Leasehold Improvements [Member] | Maximum [Member] |
Property and equipment, useful lives | 28 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
Name: | us-gaap_PropertyPlantAndEquipmentUsefulLife
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_BuildingAndBuildingImprovementsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_FurnitureAndFixturesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_LeaseholdImprovementsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |