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STOCK-BASED COMPENSATION (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands | 7 Months Ended | 12 Months Ended | 119 Months Ended
--- | --- | --- | ---
Nov. 30, 2007 | Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2017
Stock option expenses |  | $ 0 | $ 0 |
Stock award expenses |  | 0 | 3 |
Cost of shares repurchased by ESOP trust |  | $ 2,300 |  |
Average cost of shares repurchased (per share) |  | $ 10.58 |  |
Description of loan with respect to employee stock ownership plan |  | The ESOP trust purchased 217,863 shares of common stock in the open market using proceeds of a loan from the Company. The total cost of shares purchased by the ESOP trust was $2.3 million, reflecting an average cost per share of $10.58. The Bank will make cash contributions to the ESOP on an annual basis sufficient to enable the ESOP to make the required loan payments to the Company. The loan bears a variable interest rate that adjusts annually to Prime Rate (3.75% at January 1, 2017) with principal and interest payable annually in equal installments over thirty years. The loan is secured by shares of the Company’s stock. |  |
Interest rate of loan with respect to employee stock ownership plan |  | 3.75% |  | 3.75%
Fair value of unreleased shares |  | $ 638 |  | $ 638
ESOP compensation expense |  | $ 154 | $ 122 |
Second Repurchase Program [Member] |  |  |  |
Maximum stock repurchase authorization (as a percent) |  |  |  | 5.00%
Stock authorized to be repurchased (in shares) |  | 129,924 |  | 129,924
Stock repurchased during period (in shares) |  |  |  | 81,000
Remaining shares available to be repurchased |  | 48,924 |  | 48,924
Common stock average cost (in dollars per share) |  |  |  | $ 8.33
First Repurchase Program [Member] |  |  |  |
Maximum stock repurchase authorization (as a percent) | 5.00% |  |  |
Stock authorized to be repurchased (in shares) | 130,927 |  |  |

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