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WARRANTY LIABILITY (Details) | 3 Months Ended
--- | ---
Dec. 31, 2013
Telephonics [Member] | Minimum [Member] |
WARRANTY LIABILITY (Details) [Line Items] |
Product Warranty Period | 1 year
Telephonics [Member] | Maximum [Member] |
WARRANTY LIABILITY (Details) [Line Items] |
Product Warranty Period | 2 years
Ames True Temper Inc [Member] |
WARRANTY LIABILITY (Details) [Line Items] |
Product Warranty Period | 90 days

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- Definition Product warranty period. + References No definition available. + Details
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Namespace Prefix: | gff_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | gff_WARRANTYLIABILITYDetailsLineItems
Namespace Prefix: | gff_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration