SIGNIFICANT ACCOUNTING POLICIES (Narrative) (Details) |
12 Months Ended |
|---|---|
Dec. 31, 2021 | |
| Significant Accounting Policies [Line Items] | |
| Useful lives or depreciation rates, property, plant and equipment | Plant and equipment are recorded at cost and amortized using either the straight-line method at rates varying from 5% to 30% annually or amortized on a units of production method, based on proven and probable reserves. |