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4. DISCONTINUED OPERATIONS - Summary of Income statement (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021
Revenues, net |  |
Energy hardware, software and services revenue | $ 101 | $ 4,118
Total revenues, net | 101 | 4,118
Costs and expenses |  |
Cost of revenues (exclusive of depreciation and amortization shown below) | 48 | 3,074
Professional fees | (0) | 73
Payroll expenses | 274 | 1,556
General and administrative expenses | 31 | 304
Depreciation and amortization | (0) | 270
Total costs and expenses | (353) | 5,277
Loss from operations | (252) | (1,159)
Other income (expense) |  |
Gain on disposal of assets | 1,710 | 0
Interest (expense) income | (1) | 1
Total other income (expense) | 1,709 | 1
Income (loss) before income tax (expense) or benefit | 1,457 | (1,158)
Income tax (expense) or benefit | 0 | 0
Net income (loss) attributable to common shareholders | $ 1,457 | $ (1,158)

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