DISCONTINUED OPERATIONS - Income Statement Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income from discontinued operations before taxes	$ 0	$ 3,320
Provision for income taxes	$ 0	726
Defense Electronics | Discontinued Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue		53,993
Cost of goods and services		40,961
Gross profit		13,032
Selling, general and administrative expenses		10,020
Income from discontinued operations		3,012
Interest income, net		0
Other, net		308
Total other income (expense)		308
Income from discontinued operations before taxes		3,320
Provision for income taxes		726
Income from discontinued operations		$ 2,594