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Note 2 - Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2015

Notes Tables

Property Plant and Equipment, Estimated Useful Lives [Table Text Block]

Land improvements	10	–	15
Buildings and improvements	10	–	40
Machinery and equipment	5	–	20
Dies and tools	3	–	10
Vehicles	3	–	5
Office equipment and systems	3	–	15
Leasehold improvements	7	–	20

X

- Definition

Disclosure of accounting policy for long-lived, physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, basis of assets, depreciation and depletion methods used, including composite deprecation, estimated useful lives, capitalization policy, accounting treatment for costs incurred for repairs and maintenance, capitalized interest and the method it is calculated, disposals and impairments.

+ References

No definition available.

+ Details

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Namespace Prefix:	gnrc_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_TableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration