CONSOLIDATING GUARANTOR AND NON-GUARANTOR FINANCIAL INFORMATION (Details)	12 Months Ended
	Sep. 30, 2020
Clopay Ames True Temper Holding, Corp.
Condensed Financial Statements, Captions [Line Items]
Subsidiary percentage ownership	100.00%
AMES Southern, Inc.
Condensed Financial Statements, Captions [Line Items]
Subsidiary percentage ownership	100.00%
The AMES Companies, Inc.
Condensed Financial Statements, Captions [Line Items]
Subsidiary percentage ownership	100.00%
Telephonics Corporation
Condensed Financial Statements, Captions [Line Items]
Subsidiary percentage ownership	100.00%
Clopay Building Products
Condensed Financial Statements, Captions [Line Items]
Subsidiary percentage ownership	100.00%