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ACCUMULATED OTHER COMPREHENSIVE INCOME (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Mar. 31, 2024 | Mar. 31, 2023 | Mar. 31, 2024 | Mar. 31, 2023 | Sep. 30, 2023
Changes in foreign currency translation |  |  |  |  |
Beginning accumulated foreign currency translation | $ 250 | $ 224 | $ 220 | $ 222 |
Change in cumulative translation adjustment before reclassifications | (22) | 0 | 8 | 2 |
Income taxes | 0 | 0 | 0 | 0 |
Net current period other comprehensive (loss) income | (22) | 0 | 8 | 2 |
Ending accumulated foreign currency translation | 228 | 224 | 228 | 224 |
Changes in retirement plans |  |  |  |  |
Beginning accumulated retirement plans benefit income | 1,863 | 1,052 | 1,884 | 1,072 |
Amortization of net actuarial gain | (22) | (20) | (43) | (40) |
Income taxes | 0 | 0 | 0 | 0 |
Net current period other comprehensive loss | (22) | (20) | (43) | (40) |
Ending accumulated retirement plans benefit income | 1,841 | 1,032 | 1,841 | 1,032 |
Accumulated other comprehensive income, net of taxes | $ 2,069 | $ 1,256 | $ 2,069 | $ 1,256 | $ 2,104

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