Shareholders' Equity (Schedule Of Stock Options Outstanding) (Details) (USD $)	12 Months Ended
	Oct. 31, 2012
Exercise Price Of Stock Options [Line Items]
Number Outstanding and Subject to Exercise	286,072
Weighted Average Remaining Contractual Life	1 year 8 months 23 days
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	11 months 5 days
Exercise Price $2.53 [Member]
Exercise Price Of Stock Options [Line Items]
Exercise Prices	2.53
Number Outstanding and Subject to Exercise	4,000
Weighted Average Remaining Contractual Life	9 months 29 days
Exercise Price $5.08 [Member]
Exercise Price Of Stock Options [Line Items]
Exercise Prices	5.08
Number Outstanding and Subject to Exercise	48,000
Weighted Average Remaining Contractual Life	1 year 5 months 23 days
Exercise Price $5.16 [Member]
Exercise Price Of Stock Options [Line Items]
Exercise Prices	5.16
Number Outstanding and Subject to Exercise	35,584
Weighted Average Remaining Contractual Life	2 years 9 months 18 days
Exercise Price $5.66 [Member]
Exercise Price Of Stock Options [Line Items]
Exercise Prices	5.66
Number Outstanding and Subject to Exercise	10,000
Weighted Average Remaining Contractual Life	2 years 6 months 18 days
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 6 months 15 days
Exercise Price $6.60 [Member]
Exercise Price Of Stock Options [Line Items]
Exercise Prices	6.60
Number Outstanding and Subject to Exercise	36,697
Weighted Average Remaining Contractual Life	1 year 8 months 27 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	1 year 11 months 5 days
Exercise Price $7.86 [Member]
Exercise Price Of Stock Options [Line Items]
Exercise Prices	7.86
Number Outstanding and Subject to Exercise	84,641
Weighted Average Remaining Contractual Life	1 year 9 months 29 days