SUBSEQUENT EVENT	9 Months Ended
Jun. 30, 2011
Schedule of Subsequent Events [Text Block]	NOTE 22 — SUBSEQUENT EVENT Griffon’s Board of Directors has authorized the repurchase of up to an additional $50,000 of Griffon’s outstanding common stock. Approximately 1,366,000 shares of common stock remain available for repurchase pursuant to an existing buyback program. Under the repurchase programs, the Company may, from time to time, purchase shares of its common stock, depending upon market conditions, in open market or privately negotiated transactions, including pursuant to a 10b5-1 plan.

Describes disclosed significant events or transactions that occurred after the balance sheet date, but before the issuance of the financial statements. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, losses resulting from fire or flood, losses on receivables, significant realized and unrealized gains and losses that result from changes in quoted market prices of securities, declines in market prices of inventory, changes in authorized or issued debt (SEC), significant foreign exchange rate changes, substantial loans to insiders or affiliates, significant long-term investments, and substantial dividends not in the ordinary course of business.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 5
-Paragraph 11

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