REPORTABLE SEGMENTS (Details) - segment	12 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2018
Segment Reporting Information [Line Items]
Number of reportable segments	3
Segment Revenue Benchmark | Home Depot | Consumer and Professional Products
Segment Reporting Information [Line Items]
Concentration risk, percentage	27.00%	28.00%	29.00%
Segment Revenue Benchmark | Home Depot | Home and Building Products (HBP)
Segment Reporting Information [Line Items]
Concentration risk, percentage	12.00%	13.00%	16.00%
Segment Revenue Benchmark | United States Government | Defense Electronics
Segment Reporting Information [Line Items]
Concentration risk, percentage	69.00%	63.00%	62.00%
Consolidated Revenue from Continuing Operations Benchmark | Home Depot | Consumer and Professional Products
Segment Reporting Information [Line Items]
Concentration risk, percentage	13.00%	13.00%	14.00%
Consolidated Revenue from Continuing Operations Benchmark | Home Depot | Home and Building Products (HBP)
Segment Reporting Information [Line Items]
Concentration risk, percentage	5.00%	5.00%	6.00%
Consolidated Revenue from Continuing Operations Benchmark | United States Government | Defense Electronics
Segment Reporting Information [Line Items]
Concentration risk, percentage	9.00%	10.00%	10.00%