|
Stock Options - Additional Information (Detail) (USD $)
|
9 Months Ended | 12 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended | 12 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended | 1 Months Ended | 9 Months Ended | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Aug. 31, 2013
Executives and Consultants [Member]
|
Nov. 30, 2012
Executives and Consultants [Member]
|
Aug. 31, 2013
Service-Based Vesting Condition Options [Member]
|
Nov. 30, 2012
Service-Based Vesting Condition Options [Member]
|
Aug. 31, 2013
Performance Shares [Member]
|
Aug. 31, 2012
Performance Shares [Member]
|
Aug. 31, 2013
Performance Shares [Member]
|
Nov. 30, 2012
Performance Shares [Member]
|
Aug. 31, 2013
Market-Based Vesting Condition Options [Member]
|
Aug. 31, 2012
Market-Based Vesting Condition Options [Member]
|
Aug. 31, 2013
Market-Based Vesting Condition Options [Member]
|
Aug. 31, 2012
Market-Based Vesting Condition Options [Member]
|
Aug. 31, 2013
Performance and Market-Based Vesting Condition Options [Member]
|
Nov. 30, 2012
Performance and Market-Based Vesting Condition Options [Member]
|
Aug. 31, 2013
Stock Option [Member]
Service-Based Vesting Condition Options [Member]
|
Aug. 31, 2012
Stock Option [Member]
Service-Based Vesting Condition Options [Member]
|
Aug. 31, 2012
Stock Option [Member]
Performance Shares [Member]
|
Aug. 31, 2012
Stock Option [Member]
Performance and Market-Based Vesting Condition Options [Member]
|
Aug. 31, 2012
Stock Option [Member]
Performance and Market-Based Vesting Condition Options [Member]
|
Aug. 31, 2013
2000 Plan [Member]
Employee Stock Incentive Plan [Member]
|
Nov. 30, 2012
2000 Plan [Member]
Employee Stock Incentive Plan [Member]
|
Aug. 31, 2013
2000 Plan [Member]
Service-Based Vesting Condition Options [Member]
|
Aug. 31, 2013
2006 Plan [Member]
Employee Stock Incentive Plan [Member]
|
Nov. 30, 2012
2006 Plan [Member]
Employee Stock Incentive Plan [Member]
|
Aug. 31, 2013
2006 Plan [Member]
Service-Based Vesting Condition Options [Member]
|
May 31, 2012
2012 Plan [Member]
Employee Stock Incentive Plan [Member]
|
Aug. 31, 2013
2012 Plan [Member]
Employee Stock Incentive Plan [Member]
|
Nov. 30, 2012
2012 Plan [Member]
Employee Stock Incentive Plan [Member]
|
Aug. 31, 2013
2012 Plan [Member]
Service-Based Vesting Condition Options [Member]
|
Aug. 31, 2013
2012 Plan [Member]
Performance Options [Member]
Employee Stock Incentive Plan [Member]
|
Nov. 30, 2012
2012 Plan [Member]
Performance Options [Member]
Employee Stock Incentive Plan [Member]
|
Aug. 31, 2013
Minimum [Member]
2000 Plan [Member]
Employee Stock Incentive Plan [Member]
Y
|
Aug. 31, 2013
Maximum [Member]
2000 Plan [Member]
Employee Stock Incentive Plan [Member]
Y
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||||||||||||||||||||||||||||||||
| Common stock for issuance pursuant to stock options or restricted stock | 2,250,000 | 1,000,000 | 1,500,000 | ||||||||||||||||||||||||||||||
| Term of options | 5 | 7 | |||||||||||||||||||||||||||||||
| Vesting period ranging from, date of grant | 3 years | ||||||||||||||||||||||||||||||||
| Options exercisable period after termination | 90 days | ||||||||||||||||||||||||||||||||
| Granted, Shares | 1,128,926 | 1,183,098 | 640,000 | 640,000 | 12,500 | 60,589 | 1,000,000 | 1,000,000 | |||||||||||||||||||||||||
| Shares issued under 2000 stock incentive plan | 0 | 147,428 | 1,500,000 | 1,500,000 | |||||||||||||||||||||||||||||
| Share issued | 756,426 | 762,509 | |||||||||||||||||||||||||||||||
| Increase in common stock reserved for issuance | 2,500,000 | ||||||||||||||||||||||||||||||||
| Weighted average grant date fair value of options | $ 1.58 | $ 1.55 | $ 0.00 | $ 1.28 | |||||||||||||||||||||||||||||
| Number of share issued to option holder | 10,000 | ||||||||||||||||||||||||||||||||
| Options exercised | $ 14,950 | ||||||||||||||||||||||||||||||||
| Share receive for option exercises | 10,000 | 33,562 | |||||||||||||||||||||||||||||||
| Number of option surrendered | 80,172 | 26,749 | |||||||||||||||||||||||||||||||
| Issuance of common stock to cover the total cost of exercising the stock option | 6,813 | ||||||||||||||||||||||||||||||||
| Unrecognized compensation cost related to non-vested share-based compensation arrangements granted | 616,000 | 616,000 | 616,000 | 91,800 | 91,800 | 142,000 | 142,000 | 142,000 | |||||||||||||||||||||||||
| Weighted-average period | 1 year 1 month 6 days | ||||||||||||||||||||||||||||||||
| Total fair value of shares vested | 223,000 | ||||||||||||||||||||||||||||||||
| Granted, Shares | 36,000 | 0 | 0 | 0 | 0 | 0 | 0 | ||||||||||||||||||||||||||
| 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 | |||||||||||||||||||||||||||||||