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Note 5 - Property and Equipment and Assets Held for Sale (Details) - Property and Equipment (Parentheticals) | 12 Months Ended
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Dec. 31, 2013 | Dec. 31, 2012
Equipment [Member] | Minimum [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Property and equipment, useful life | 3 years | 3 years
Equipment [Member] | Maximum [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Property and equipment, useful life | 15 years | 15 years
Tooling [Member] | Minimum [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Property and equipment, useful life | 2 years | 2 years
Tooling [Member] | Maximum [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Property and equipment, useful life | 5 years | 5 years
Furniture and Fixtures [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Property and equipment, useful life | 5 years | 5 years
Software and Software Development Costs [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Property and equipment, useful life | 3 years | 3 years
Minimum [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Property and equipment, useful life | 2 years |
Maximum [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Property and equipment, useful life | 15 years |

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- Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- 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