CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended
Apr. 30, 2015	Apr. 30, 2014	Apr. 30, 2015	Apr. 30, 2014
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME [Abstract]
Net income	$ 3,961us-gaap_NetIncomeLoss	$ 3,536us-gaap_NetIncomeLoss	$ 7,727us-gaap_NetIncomeLoss	$ 5,905us-gaap_NetIncomeLoss
Other comprehensive income (loss):
Translation of foreign currency financial statements	1,020	1,227	(4,036)	514
(Gain) / loss on derivative instruments reclassified into operations, net of tax of $4, $117, $204 and $264, respectively	8	225	372	481
Gain / (loss) on derivative instruments, net of tax of $163, $(412), $1,019 and $(666), respectively	296	(770)	1,852	(1,211)
Total other comprehensive income (loss)	1,324	682	(1,812)	(216)
Comprehensive income	$ 5,285us-gaap_ComprehensiveIncomeNetOfTax	$ 4,218us-gaap_ComprehensiveIncomeNetOfTax	$ 5,915us-gaap_ComprehensiveIncomeNetOfTax	$ 5,689us-gaap_ComprehensiveIncomeNetOfTax

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.

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Amount after tax of other comprehensive income (loss) attributable to parent entity.

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Amount after tax of reclassification adjustment from accumulated other comprehensive income of accumulated gain (loss) realized from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's deferred hedging gain (loss).

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Amount after tax of increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).

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