Separation Accrual (Schedule of Accrued Severance Expenses) (Details) (USD $)	3 Months Ended			9 Months Ended
	Jul. 31, 2013	Jan. 31, 2013	Jul. 31, 2012	Jul. 31, 2013	Jul. 31, 2012
Separation Accrual [Abstract]
Balance, beginning of period	$ 129,000	$ 343,000	$ 195,000	$ 343,000	$ 117,000
Severance incurred during the period		56,000	128,000	56,000	344,000
Severance payments	(81,000)		(144,000)	(351,000)	(282,000)
Balance, end of period	$ 48,000		$ 179,000	$ 48,000	$ 179,000