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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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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ORGANIZATION, BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES, Earnings Per Share (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Oct. 31, 2018	Jul. 31, 2018	Apr. 30, 2018	Jan. 31, 2018	Oct. 31, 2017	Jul. 31, 2017	Apr. 30, 2017	Jan. 31, 2017	Oct. 31, 2018	Oct. 31, 2017	Oct. 31, 2016
Numerator [Abstract]
Net income applicable to common stockholders - basic	$ 5,119	$ 5,579	$ 9,598	$ 4,921	$ 324	$ 6,061	$ 24,101	$ 3,412	$ 25,217	$ 33,898	$ 19,436
Common Stock [Member]
Numerator [Abstract]
Net income applicable to common stockholders - basic									5,173	6,857	4,142
Effect of dilutive securities [Abstract]
Restricted stock awards									259	376	236
Net income applicable to common stockholders - diluted									$ 5,432	$ 7,233	$ 4,378
Denominator [Abstract]
Denominator for basic EPS - weighted average common shares (in shares)									8,517	8,383	8,241
Effect of dilutive securities [Abstract]
Restricted stock awards (in shares)									597	643	669
Denominator for diluted EPS - weighted average common equivalent shares (in shares)									9,114	9,026	8,910
Class A Common Stock [Member]
Numerator [Abstract]
Net income applicable to common stockholders - basic									$ 20,044	$ 27,041	$ 15,294
Effect of dilutive securities [Abstract]
Restricted stock awards									(259)	(376)	(236)
Net income applicable to common stockholders - diluted									$ 19,785	$ 26,665	$ 15,058
Denominator [Abstract]
Denominator for basic EPS - weighted average common shares (in shares)									29,335	29,317	26,921
Effect of dilutive securities [Abstract]
Restricted stock awards (in shares)									178	186	191
Denominator for diluted EPS - weighted average common equivalent shares (in shares)									29,513	29,503	27,112