COMMITMENTS AND CONTINGENCIES: (Tables) |
3 Months Ended | ||||||||||||||||||||||||||||||||||||||||
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Feb. 28, 2017 | |||||||||||||||||||||||||||||||||||||||||
| 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 2027. Future minimum contractually required cash payment obligations under non-cancellable lease agreements as of February 28, 2017 were as follows:
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