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Stock Options (Details Textual) (USD $)
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3 Months Ended | 12 Months Ended | 3 Months Ended | 3 Months Ended | 12 Months Ended | 3 Months Ended | 3 Months Ended | 12 Months Ended | 3 Months Ended | 12 Months Ended | 3 Months Ended | 1 Months Ended | 3 Months Ended | 3 Months Ended | |||||||||||||
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Feb. 28, 2013
Executives And Consultants [Member]
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Nov. 30, 2012
Executives And Consultants [Member]
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Feb. 28, 2013
Service-based vesting condition options [Member]
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Nov. 30, 2012
Service-based vesting condition options [Member]
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Feb. 28, 2013
Performance and market-based vesting condition options [Member]
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Nov. 30, 2012
Performance and market-based vesting condition options [Member]
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Feb. 28, 2013
Performance based vesting condition options [Member]
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Nov. 30, 2012
Performance based vesting condition options [Member]
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Feb. 28, 2013
Market-based vesting condition options [Member]
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Nov. 30, 2012
Market-based vesting condition options [Member]
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Feb. 28, 2013
Stock Option [Member]
Service-based vesting condition options [Member]
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Feb. 29, 2012
Stock Option [Member]
Service-based vesting condition options [Member]
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Feb. 28, 2013
Stock Option [Member]
Performance and market-based vesting condition options [Member]
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Feb. 29, 2012
Stock Option [Member]
Performance and market-based vesting condition options [Member]
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Nov. 30, 2012
Stock Option [Member]
Performance based vesting condition options [Member]
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Feb. 28, 2013
2000 Plan [Member]
Service-based vesting condition options [Member]
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Feb. 28, 2013
2000 Plan [Member]
Employee stock incentive plan [Member]
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Nov. 30, 2012
2000 Plan [Member]
Employee stock incentive plan [Member]
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Feb. 28, 2013
2006 Plan [Member]
Service-based vesting condition options [Member]
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Feb. 28, 2013
2006 Plan [Member]
Employee stock incentive plan [Member]
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Nov. 30, 2012
2006 Plan [Member]
Employee stock incentive plan [Member]
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Feb. 28, 2013
2012 plan [Member]
Service-based vesting condition options [Member]
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May 31, 2012
2012 plan [Member]
Employee stock incentive plan [Member]
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Feb. 28, 2013
2012 plan [Member]
Employee stock incentive plan [Member]
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Nov. 30, 2012
2012 plan [Member]
Employee stock incentive plan [Member]
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Feb. 28, 2013
Maximum [Member]
2000 Plan [Member]
Employee stock incentive plan [Member]
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Feb. 28, 2013
Minimum [Member]
2000 Plan [Member]
Employee stock incentive plan [Member]
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| Stockholders Equity (Textual) [Abstract] | |||||||||||||||||||||||||||
| Common stock for issuance pursuant to stock options or restricted stock | 2,250,000 | 1,000,000 | 1,500,000 | ||||||||||||||||||||||||
| Term of options | 7 years | 5 years | |||||||||||||||||||||||||
| Vesting period ranging from, date of grant | 3 years | ||||||||||||||||||||||||||
| Options exercisable period after termination | 90 days | ||||||||||||||||||||||||||
| Stock option outstanding under 2000 stock incentive plan | 1,177,848 | 1,183,098 | 640,000 | 640,000 | 58,089 | 60,589 | |||||||||||||||||||||
| Shares issued under 2000 stock incentive plan | 0 | 142,845 | 1,500,000 | ||||||||||||||||||||||||
| Share issued | 759,759 | 762,509 | |||||||||||||||||||||||||
| Increase in common stock reserved for issuance | 2,500,000 | ||||||||||||||||||||||||||
| Granted, Shares | 8,500 | 0 | 0 | 1,000,000 | |||||||||||||||||||||||
| Weighted average grant date fair value of options | $ 1.68 | $ 1.47 | $ 1.21 | ||||||||||||||||||||||||
| Option exercised | $ 0 | $ 0 | |||||||||||||||||||||||||
| Unrecognized compensation cost related to non-vested share-based compensation arrangements granted | 616,000 | 616,000 | 111,600 | 204,000 | 204,000 | 204,000 | |||||||||||||||||||||
| Weighted-average period | 1 year 6 months | 3 years | |||||||||||||||||||||||||
| Total fair value of shares vested | 73,500 | ||||||||||||||||||||||||||
| Granted, Shares | 213,334 | 426,666 | |||||||||||||||||||||||||
| Share based compensation recognized on achievement of performance targets | 0 | 0 | |||||||||||||||||||||||||
| Compensation expenses recognized without performance target achievement | $ 0 | $ 0 | |||||||||||||||||||||||||