SHORT TERM DEPOSITS |
12 Months Ended | |||||
|---|---|---|---|---|---|---|
Dec. 31, 2017 | ||||||
| Cash and Cash Equivalents [Abstract] | ||||||
| Short Term Investments [Text Block] |
Short term investments on December 31, 2017 and December 31, 2016 include bank deposits bearing annual interest rates varying from 0.05% to 1.90%, with maturities of up to 5 months as of December 31, 2017 and 2016. |