Stock-Based Compensation And Stock Options (Schedule Of Stock Options Outstanding) (Details) (USD $)	6 Months Ended
	Apr. 30, 2013
Exercise Price Of Stock Options [Line Items]
Number Outstanding and Subject to Exercise	209,137
Weighted Average Remaining Contractual Life	1 year 7 months 13 days
Number Subject to Exercise	203,237
Exercise Price $2.00 [Member]
Exercise Price Of Stock Options [Line Items]
Exercise Prices	2.00
Number Outstanding and Subject to Exercise	1,150
Weighted Average Remaining Contractual Life	5 months 9 days
Number Subject to Exercise	1,150
Exercise Price $5.08 [Member]
Exercise Price Of Stock Options [Line Items]
Exercise Prices	5.08
Number Outstanding and Subject to Exercise	9,000
Weighted Average Remaining Contractual Life	3 years 26 days
Number Subject to Exercise	9,000
Exercise Price $5.16 [Member]
Exercise Price Of Stock Options [Line Items]
Exercise Prices	5.16
Number Outstanding and Subject to Exercise	30,250
Weighted Average Remaining Contractual Life	2 years 3 months 29 days
Number Subject to Exercise	30,250
Exercise Price $6.23 [Member]
Exercise Price Of Stock Options [Line Items]
Exercise Prices	6.23
Number Outstanding and Subject to Exercise	24,500
Weighted Average Remaining Contractual Life	1 year 15 days
Number Subject to Exercise	24,500
Exercise Price $6.60 [Member]
Exercise Price Of Stock Options [Line Items]
Exercise Prices	6.60
Number Outstanding and Subject to Exercise	22,142
Weighted Average Remaining Contractual Life	1 year 2 months 23 days
Number Subject to Exercise	22,142
Exercise Price $6.76 [Member]
Exercise Price Of Stock Options [Line Items]
Exercise Prices	6.76
Number Outstanding and Subject to Exercise	5,900
Weighted Average Remaining Contractual Life	9 years 6 months 15 days
Exercise Price $7.79 [Member]
Exercise Price Of Stock Options [Line Items]
Exercise Prices	7.79
Number Outstanding and Subject to Exercise	41,500
Weighted Average Remaining Contractual Life	5 months 9 days
Number Subject to Exercise	41,500
Exercise Price $7.86 [Member]
Exercise Price Of Stock Options [Line Items]
Exercise Prices	7.86
Number Outstanding and Subject to Exercise	74,695
Weighted Average Remaining Contractual Life	1 year 6 months
Number Subject to Exercise	74,695