Note 6 - Share-Based Compensation (Details) - Option Valuation Assumptions (Employee Stock Option [Member], Black-Scholes Valuation Model [Member])	3 Months Ended	9 Months Ended
	Jul. 31, 2013	Jul. 31, 2013
Employee Stock Option [Member] | Black-Scholes Valuation Model [Member]
Option valuation assumptions:
Expected dividend yield
Expected volatility		63.10%
Risk-free interest rate		0.60%
Expected term (in years)		4 years 146 days