COMMITMENTS AND CONTINGENCIES (Tables) |
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2017 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Commitments and Contingencies Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block] | Aggregate minimum rental commitments under non-cancelable leases as of December 31, 2017 are as follows:
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