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STOCK-BASED COMPENSATION (Details) | 12 Months Ended
--- | ---
Sep. 30, 2019 ¥ / shares shares | Sep. 30, 2018 shares
Tranche 7 [Member] |  |
Grant date | Jan. 03, 2012 |
Tranche 8 [Member] |  |
Options outstanding | 0 | 35,500
Number of options granted |  | 0
Options exercised |  | 0
Options cancelled/expired |  | (355,000)
Options outstanding |  | 0
Options vested and exercisable | 0 | 0
Weighted average fair value at the grant date (USD) | ¥ / shares | ¥ 7.60 |
Tranche 9 [Member] |  |
Grant date | Jan. 02, 2014 |
Options outstanding |  | 34,500
Number of options granted |  | 0
Options exercised |  | 0
Options cancelled/expired |  | (34,500)
Options outstanding | 34,500 |
Options vested and exercisable | 34,500 | 34,500
Weighted average fair value at the grant date (USD) | ¥ / shares | ¥ 6.50 |
Tranche 10 [Member] |  |
Grant date | Jan. 02, 2015 |
Options outstanding | 19,500 | 19,500
Number of options granted |  | 0
Options exercised |  | 0
Options cancelled/expired |  | 0
Options outstanding | 19,500 | 19,500
Options vested and exercisable | 19,500 | 19,500
Weighted average fair value at the grant date (USD) | ¥ / shares | ¥ 7.50 |
Tranche 11 [Member] |  |
Grant date | Jan. 04, 2016 |
Options outstanding | 13,500 | 13,500
Number of options granted |  | 0
Options exercised |  | 0
Options cancelled/expired |  | 0
Options outstanding | 13,500 | 13,500
Options vested and exercisable | 13,500 | 13,500
Weighted average fair value at the grant date (USD) | ¥ / shares | ¥ 9.00 |
Tranche 12 [Member] |  |
Grant date | Apr. 19, 2016 |
Options outstanding | 60,000 | 60,000
Number of options granted |  | 0
Options exercised |  | 0
Options cancelled/expired |  | 0
Options outstanding | 60,000 | 60,000
Options vested and exercisable | 60,000 | 60,000
Weighted average fair value at the grant date (USD) | ¥ / shares | ¥ 15.40 |
Tranche 13 [Member] |  |
Grant date | May 16, 2016 |
Options outstanding | 20,000 | 20,000
Number of options granted |  | 0
Options exercised |  | 0
Options cancelled/expired |  | 0
Options outstanding | 20,000 | 20,000
Options vested and exercisable | 20,000 | 20,000
Weighted average fair value at the grant date (USD) | ¥ / shares | ¥ 12.40 |
Tranche 14 [Member] |  |
Grant date | Aug. 03, 2016 |
Options outstanding | 20,000 | 20,000
Number of options granted |  | 0
Options exercised |  | 0
Options cancelled/expired |  | 0
Options outstanding | 20,000 | 20,000
Options vested and exercisable | 20,000 | 20,000
Weighted average fair value at the grant date (USD) | ¥ / shares | ¥ 14.40 |
Tranche 15 [Member] |  |
Grant date | Jan. 03, 2017 |
Options outstanding | 18,000 | 18,000
Number of options granted |  | 0
Options exercised |  | 0
Options cancelled/expired |  | 0
Options outstanding | 18,000 | 18,000
Options vested and exercisable | 18,000 | 18,000
Weighted average fair value at the grant date (USD) | ¥ / shares | ¥ 4.00 |
Tranche 16 [Member] |  |
Grant date | Oct. 02, 2017 |
Options outstanding | 2,500 | 0
Number of options granted |  | 2,500
Options exercised |  | 0
Options cancelled/expired |  | 0
Options outstanding | 2,500 | 2,500
Options vested and exercisable | 2,500 | 2,500
Weighted average fair value at the grant date (USD) | ¥ / shares | ¥ 7.70 |
Tranche 17 [Member] |  |
Grant date | Dec. 22, 2017 |
Options outstanding | 8,800 | 0
Number of options granted |  | 8,800
Options exercised |  | 0
Options cancelled/expired |  | 0
Options outstanding | 8,800 | 8,800
Options vested and exercisable | 8,800 | 8,800
Weighted average fair value at the grant date (USD) | ¥ / shares | ¥ 4.40 |
Tranche 18 [Member] |  |
Grant date | Jan. 02, 2018 |
Options outstanding | 29,000 | 0
Number of options granted |  | 29,000
Options exercised |  | 0
Options cancelled/expired |  | 0
Options outstanding | 29,000 | 29,000
Options vested and exercisable | 29,000 | 29,000
Weighted average fair value at the grant date (USD) | ¥ / shares | ¥ 5.10 |
Tranche 19 [Member] |  |
Grant date | Mar. 01, 2018 |
Options outstanding | 20,000 | 0
Number of options granted |  | 20,000
Options exercised |  | 0
Options cancelled/expired |  | 0
Options outstanding | 20,000 | 20,000
Options vested and exercisable | 20,000 | 29,000
Weighted average fair value at the grant date (USD) | ¥ / shares | ¥ 5.10 |
Tranche 20 [Member] |  |
Grant date | Jan. 02, 2019 |
Options outstanding | 0 | 0
Number of options granted | 36,000 | 0
Options exercised |  | 0
Options cancelled/expired |  | 0
Options outstanding | 36,000 | 0
Options vested and exercisable | 36,000 | 0
Weighted average fair value at the grant date (USD) | ¥ / shares | ¥ 4.00 |

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