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RELATED-PARTY TRANSACTIONS - Transactions Involving CS Financial and Jeffrey T. Seabold (Details) - USD ($) $ / shares in Units, $ in Millions | Oct. 31, 2016 | Nov. 02, 2015 | Oct. 31, 2014 | Oct. 31, 2013
--- | --- | --- | --- | ---
Performance Shares |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Number of shares (in shares) |  |  |  | 92,781
CS Financial |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Shares paid as merger consideration (in shares) |  |  |  | 173,791
Par value of stocks issued (in dollars per share) |  |  |  | $ 0.01
Cash paid for acquisition |  |  |  | $ 1.5
Noninterest-bearing note |  |  |  | $ 3.2
CS Financial | Managing Director and Chief Lending Officer |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Shares paid as merger consideration (in shares) |  |  |  | 103,663
CS Financial | Brother of President and Chief Executive Officer |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Shares paid as merger consideration (in shares) |  |  |  | 16,140
CS Financial | Sister-in-Law of President and Chief Executive Officer |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Shares paid as merger consideration (in shares) |  |  |  | 16,140
Number of shares transferred from one related party to another related party (in shares) |  |  |  | 103,663
CS Financial | Father of President and Chief Executive Officer |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Shares paid as merger consideration (in shares) |  |  |  | 3,228
CS Financial | Certain Employees of Acquired Entity |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Shares paid as merger consideration (in shares) |  |  |  | 34,620
CS Financial | Performance Shares | Managing Director and Chief Lending Officer |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Shares paid as merger consideration (in shares) | 28,547 | 28,545 | 28,545 |
CS Financial | Performance Shares | Brother of President and Chief Executive Officer |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Shares paid as merger consideration (in shares) | 1,083 | 1,082 | 1,082 |
CS Financial | Performance Shares | Sister-in-Law of President and Chief Executive Officer |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Shares paid as merger consideration (in shares) | 1,083 | 1,082 | 1,082 |
CS Financial | Performance Shares | Father of President and Chief Executive Officer |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Shares paid as merger consideration (in shares) | 218 | 216 | 216 |

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