Benefit Plans Employee stock purchase plan (Tables)

12 Months Ended

Oct. 31, 2014

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of Share-based Compensation, Employee Stock Purchase Plan, Activity [Table Text Block]

ESPP activity for the year ended October 31, 2014 was as follows:

	Number of
ESPP	Shares
Balance at October 31, 2013	549,584
Issued @ $0.85	(124,334	)
Issued @ $1.13	(143,041	)
Available for issuance at October 31, 2014	282,209

Schedule of Share-based Payment Award, Employee Stock Purchase Plan, Valuation Assumptions [Table Text Block]

The fair value of shares under the ESPP was determined at the grant date using the Black-Scholes option-pricing model with the following weighted average assumptions:

	2014		2013		2012
Expected life (in years)	0.5		0.5		0.5
Risk free interest rate	0.08	%	0.15	%	0.07	%
Volatility	75.0	%	75.0	%	92.0	%
Dividends yield	—	%	—	%	—	%