Schedule of Disclosure of Stock Options Outstanding (Details) (USD $)			3 Months Ended
Feb. 28, 2013	Nov. 30, 2012	Feb. 28, 2013 Range 1 [Member]	Feb. 28, 2013 Range 2 [Member]
Exercise price lower range limit			$ 1.72	$ 3.00
Exercise price upper range limit			$ 2.99	$ 3.99
Number of outstanding options	6,024,993	6,064,994	135,000	5,889,993
Weighted average years to expiry	4 years 2 months 8 days		4 years 6 months 11 days	4 years 2 months 5 days
Weighted average exercise price options outstanding	$ 2.99	$ 3.11	$ 1.77	$ 3.02
Number of exercisable options	2,316,652		3,333	2,313,319
Weighted average exercise price	$ 3.02		$ 1.91	$ 3.02

Weighted average years to expiry

No definition available.

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- Definition

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

+ References

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- Definition

The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

+ References

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- Definition

The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options.

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- Definition

Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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- Definition

The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

+ References

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The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

+ References

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