COMMITMENTS AND CONTINGENCIES: (Tables) |
6 Months Ended | ||||||||||||||||||||||||||||||||||||||||
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May. 31, 2015 | |||||||||||||||||||||||||||||||||||||||||
| Commitments and Contingencies Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||
| Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block] | The Company leases certain of its facilities under operating lease agreements, which expire in various periods through 2025. Future minimum rental obligations under noncancellable lease agreements as of May 31, 2015 were as follow:
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