DISCONTINUED OPERATIONS - Balance sheets information of installation services and other discontinued activities (Details) - Installation Services and Other Discontinued Activities - Discontinued Operations - USD ($) $ in Thousands	Sep. 30, 2022	Sep. 30, 2021
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Prepaid and other current assets	$ 1,189	$ 605
Other long-term assets	4,586	3,424
Total assets of discontinued operations	5,775	4,029
Accrued liabilities	12,656	3,280
Other long-term liabilities	4,262	3,794
Total liabilities of discontinued operations	$ 16,918	$ 7,074