ORGANIZATION, BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES, Earnings Per Share (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended	6 Months Ended
Apr. 30, 2018	Apr. 30, 2017	Apr. 30, 2018	Apr. 30, 2017
Numerator [Abstract]
Net income applicable to common and Class A common stockholders - basic	$ 9,598	$ 24,101	$ 14,519	$ 27,513
Common Stock [Member]
Numerator [Abstract]
Net income applicable to common and Class A common stockholders - basic	1,975	4,876	2,987	5,565
Effect of dilutive securities [Abstract]
Restricted stock awards	97	263	137	280
Net income applicable to common stockholders - diluted	$ 2,072	$ 5,139	$ 3,124	$ 5,845
Denominator [Abstract]
Denominator for basic EPS - weighted average common shares (in shares)	8,559	8,383	8,558	8,382
Effect of dilutive securities [Abstract]
Restricted stock awards (in shares)	591	636	546	584
Denominator for diluted EPS - weighted average common equivalent shares (in shares)	9,150	9,019	9,104	8,966
Class A Common Stock [Member]
Numerator [Abstract]
Net income applicable to common and Class A common stockholders - basic	$ 7,623	$ 19,225	$ 11,532	$ 21,948
Effect of dilutive securities [Abstract]
Restricted stock awards	(97)	(263)	(137)	(280)
Net income applicable to common stockholders - diluted	$ 7,526	$ 18,962	$ 11,395	$ 21,668
Denominator [Abstract]
Denominator for basic EPS - weighted average common shares (in shares)	29,358	29,313	29,365	29,312
Effect of dilutive securities [Abstract]
Restricted stock awards (in shares)	173	194	147	161
Denominator for diluted EPS - weighted average common equivalent shares (in shares)	29,531	29,507	29,512	29,473

Amount of increase (decrease) to net income used for calculating diluted earnings per share (EPS), resulting from the assumed exercise of stock options or restrictive stock units (RSUs).

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Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method.

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Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities; of income (loss) available to common shareholders.

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Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities, and addition from assumption of issuance of common shares for dilutive potential common shares; of income (loss) available to common shareholders.

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The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

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Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

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