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Summary of Significant Accounting Policies (Property, Plant and Equipment) (Details) | 12 Months Ended
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Dec. 31, 2017
Building and Improvements [Member] | Minimum [Member] |
Property, Plant and Equipment [Line Items] |
Estimated useful lives of property, plant and equipment | 2 years
Building and Improvements [Member] | Maximum [Member] |
Property, Plant and Equipment [Line Items] |
Estimated useful lives of property, plant and equipment | 33 years
Leasehold Improvements [Member] | Minimum [Member] |
Property, Plant and Equipment [Line Items] |
Estimated useful lives of property, plant and equipment | 1 year
Leasehold Improvements [Member] | Maximum [Member] |
Property, Plant and Equipment [Line Items] |
Estimated useful lives of property, plant and equipment | 39 years
Computer Hardware [Member] | Minimum [Member] |
Property, Plant and Equipment [Line Items] |
Estimated useful lives of property, plant and equipment | 3 years
Computer Hardware [Member] | Maximum [Member] |
Property, Plant and Equipment [Line Items] |
Estimated useful lives of property, plant and equipment | 5 years
Computer Software [Member] | Minimum [Member] |
Property, Plant and Equipment [Line Items] |
Estimated useful lives of property, plant and equipment | 3 years
Computer Software [Member] | Maximum [Member] |
Property, Plant and Equipment [Line Items] |
Estimated useful lives of property, plant and equipment | 10 years
Factory Machinery and Equipment [Member] | Minimum [Member] |
Property, Plant and Equipment [Line Items] |
Estimated useful lives of property, plant and equipment | 1 year
Factory Machinery and Equipment [Member] | Maximum [Member] |
Property, Plant and Equipment [Line Items] |
Estimated useful lives of property, plant and equipment | 15 years
Research and Development Equipment [Member] | Minimum [Member] |
Property, Plant and Equipment [Line Items] |
Estimated useful lives of property, plant and equipment | 3 years
Research and Development Equipment [Member] | Maximum [Member] |
Property, Plant and Equipment [Line Items] |
Estimated useful lives of property, plant and equipment | 10 years
Vehicles [Member] | Minimum [Member] |
Property, Plant and Equipment [Line Items] |
Estimated useful lives of property, plant and equipment | 2 years
Vehicles [Member] | Maximum [Member] |
Property, Plant and Equipment [Line Items] |
Estimated useful lives of property, plant and equipment | 8 years

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_PropertyPlantAndEquipmentLineItems
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

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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: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

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

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