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OTHER COMPREHENSIVE INCOME (Schedule of Components of Other Comprehensive Income and Related Income Tax Effects) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2017 | Jun. 30, 2019 | Jun. 30, 2018
Other comprehensive income (loss) |  |  |  |  |  |  |  |  |
Available-for-sale investments before tax |  | $ 239 |  |  | $ (223) |  |  | $ 878 | $ (469)
Tax benefit (expense) |  | (67) |  |  | 115 |  |  | (246) | 129
Available-for-sale investments after tax |  | 172 |  |  | (108) |  |  | 632 | (340)
Reclassification adjustment for net unrealized gains on securities reclassified available for sale |  |  |  |  |  |  |  |  | 104
Tax benefit (expense) |  |  |  |  |  |  |  |  | (32)
Reclassification adjustment for net unrealized gains on securities reclassified available for sale net of tax |  |  |  |  |  |  |  |  | 72
Reclassification adjustment for net gains realized on available-for-sale investments before tax | [1],[2] | (27) |  |  |  |  |  | (59) | (107)
Tax (benefit) expense | [1],[2] | 8 |  |  |  |  |  | 17 | 33
Reclassification adjustment for net gains realized on available-for-sale investments after tax | [1],[2] | (19) |  |  |  |  |  | (42) | (74)
Other comprehensive income (loss), net before tax |  | 212 |  |  | (223) |  |  | 819 | (472)
Tax benefit (expense), Total |  | (59) |  |  | 115 |  |  | (229) | 130
Other comprehensive income (loss), net |  | $ 153 | $ 191 | $ 246 | $ (108) | $ (441) | $ 19 | $ 590 | $ (342)
[1] | Realized gains on securities transactions included in gains on sales of investment securities in the accompanying Consolidated Statements of Operation.
[2] | Tax effect included in income tax expense in the accompanying Consolidated Statements of Operation.

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- Definition Amount before tax and reclassification adjustments of unrealized holding gain (loss) on available-for-sale securities and unrealized holding gain (loss) related to transfers of securities into the available-for-sale classification and out of the held-to-maturity classification. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669646-108580 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669646-108580 + Details
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