SIGNIFICANT ACCOUNTING POLICIES (Details 1)	12 Months Ended
	Dec. 31, 2018
Plant and machinery [Member] | Bottom of range [member]
Disclosure of detailed information about property, plant and equipment [line items]
Useful lives or depreciation rates, property, plant and equipment	3
Plant and machinery [Member] | Top of range [member]
Disclosure of detailed information about property, plant and equipment [line items]
Useful lives or depreciation rates, property, plant and equipment	17
Mobile equipment [member] | Bottom of range [member]
Disclosure of detailed information about property, plant and equipment [line items]
Useful lives or depreciation rates, property, plant and equipment	5
Mobile equipment [member] | Top of range [member]
Disclosure of detailed information about property, plant and equipment [line items]
Useful lives or depreciation rates, property, plant and equipment	7