Consolidated Statements Of Comprehensive Income (Loss) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Apr. 30, 2012	Apr. 30, 2011	Apr. 30, 2012	Apr. 30, 2011
Consolidated Statements Of Comprehensive Income (Loss) [Abstract]
Net income (loss)	$ 4,837	$ (678)	$ 5,191	$ 387
Other comprehensive income:
Foreign currency translation adjustments	202	644	176	807
Amortization of prior service cost, net of tax	35	24	69	48
Total other comprehensive income	237	668	245	855
Comprehensive income (loss)	$ 5,074	$ (10)	$ 5,436	$ 1,242