SUBSEQUENT EVENTS	12 Months Ended
Sep. 30, 2013
Subsequent Events [Abstract]
Subsequent Events [Text Block]	NOTE 21 – SUBSEQUENT EVENTS On November 13, 2013, Griffon announced that it will repurchase 4,444,444 shares of its common stock for $50,000 from GS Direct, L.L.C. (“GS Direct”), an affiliate of The Goldman Sachs Group, Inc. The repurchase will be effected in a private transaction at a per share price of $11.25, an approximate 9.2% discount to the stock’s closing price on November 12, 2013. The transaction is exclusive of the Company´s current $50,000 authorized share repurchase program, of which $12,027 remained as of September 30, 2013. After closing of the transaction, GS Direct will continue to hold approximately 5.56 million shares (approximately 10%) of Griffon’s common stock. GS Direct has also agreed that, subject to certain exceptions, if it intends to sell its remaining shares of Griffon common stock at any time prior to December 31, 2014, it will first negotiate with the Company in good faith to sell the shares to the Company. Griffon will fund the purchase with cash on hand and the transaction will be completed in December. On November 13, 2013, Griffon declared a $0.03 per share dividend payable on December 24, 2013 to shareholders of record as of December 5, 2013. Griffon currently intends to pay dividends each quarter; however, the payment of dividends is determined by the Board of Directors at its discretion based on various factors, and no assurance can be provided as to future dividends.

SUBSEQUENT EVENTS

12 Months Ended

Sep. 30, 2013

NOTE 21 – SUBSEQUENT EVENTS

On November 13, 2013, Griffon announced that it will repurchase 4,444,444 shares of its common stock for $50,000 from GS Direct, L.L.C. (“GS Direct”), an affiliate of The Goldman Sachs Group, Inc. The repurchase will be effected in a private transaction at a per share price of $11.25, an approximate 9.2% discount to the stock’s closing price on November 12, 2013. The transaction is exclusive of the Company´s current $50,000 authorized share repurchase program, of which $12,027 remained as of September 30, 2013. After closing of the transaction, GS Direct will continue to hold approximately 5.56 million shares (approximately 10%) of Griffon’s common stock. GS Direct has also agreed that, subject to certain exceptions, if it intends to sell its remaining shares of Griffon common stock at any time prior to December 31, 2014, it will first negotiate with the Company in good faith to sell the shares to the Company. Griffon will fund the purchase with cash on hand and the transaction will be completed in December.

On November 13, 2013, Griffon declared a $0.03 per share dividend payable on December 24, 2013 to shareholders of record as of December 5, 2013. Griffon currently intends to pay dividends each quarter; however, the payment of dividends is determined by the Board of Directors at its discretion based on various factors, and no assurance can be provided as to future dividends.