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FAIR VALUE (Tables)

12 Months Ended

Oct. 31, 2012

Fair Value Disclosures [Abstract]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

The table below segregates all financial assets and liabilities that are measured at fair value on a recurring basis into the most appropriate level within the fair value hierarchy based on the inputs used to determine the fair value at the measurement date.

		October 31, 2012				Quoted prices in active markets for identical assets (level 1)				Significant other observable inputs (level 2)				Significant unobservable inputs (level 3)
Assets:
Money market funds		$	16,048			$	16,048			$	—			$	—
Bank deposits			1,990				1,990				—				—
Total financial assets		$	18,038			$	18,038			$	—			$	—
Liabilities:
Warrant liability		$	17			$	—			$	—			$	17
Total financial liabilities		$	17			$	—			$	—			$	17

		October 31, 2011				Quoted prices in active markets for identical assets (level 1)				Significant other observable inputs (level 2)				Significant unobservable inputs (level 3)
Assets:
Money market funds		$	9,046			$	9,046			$	—			$	—
Bank deposits			4,643				4,643				—				—
Total financial assets		$	13,689			$	13,689			$	—			$	—
Liabilities:
Warrant liability		$	1,949			$	—			$	—			$	1,949
Total financial liabilities		$	1,949			$	—			$	—			$	1,949

Fair Value Assumptions Warrants [Table Text Block]

Assumptions used to determine the fair value of the warrants were:

		2012				2011				2010
Estimated fair value of stock			$1.00-$3.37				$0.62-$3.75				$0.62-$1.02
Expected warrant term			0.3-1.4 years				1.4-2.4 years				2.4-3.4 years
Risk-free rate			0.1-0.2	%			0.2-0.8	%			0.4-1.6	%
Expected volatility			77.4-80.0	%			73.5-79.7	%			73.5-76.1	%
Dividend yield			0	%			0	%			0	%

Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]

A summary of the changes to the Company’s warrant liability, as measured at fair value on a recurring basis using significant unobservable inputs (Level 3) is presented below:

		2012				2011				2010
Beginning balance		$	1,949			$	144			$	626
Warrants exercised			-				(1,042	)			-
Total loss (gain) included in net income			(1,932	)			2,847				(482	)
Ending balance		$	17			$	1,949			$	144

Tabular disclosure of the fair value measurement of liabilities using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets), and gains or losses recognized in other comprehensive income (loss) and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs) by class of liability.

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