OTHER INCOME (EXPENSE)	12 Months Ended
Sep. 30, 2013
Other Income and Expenses [Abstract]
Other Income and Other Expense Disclosure [Text Block]	NOTE 19 – OTHER INCOME (EXPENSE) Other income (expense) included ($166), ($1,414) and $626 for the years ended September 30, 2013, 2012 and 2011, respectively, of currency exchange gains (losses) in connection with the translation of receivables and payables denominated in currencies other than the functional currencies of Griffon and its subsidiaries, as well as $565, $12 and $392, respectively, of investment income (loss).

The entire disclosure for other income or other expense items (both operating and nonoperating). Sources of nonoperating income or nonoperating expense that may be disclosed, include amounts earned from dividends, interest on securities, profits (losses) on securities, net and miscellaneous other income or income deductions.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.3,6,7,9)

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 3, 6, 7, 9

-Article 5

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