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SHARE CAPITAL AND SHARE-BASED PAYMENTS (Details) - $ / shares
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Disclosure of continuing involvement in derecognised financial assets [line items]    
Outstanding and exercisable underlying shares, Beginning 3,602,215 3,602,215
Outstanding and exercisable underlying shares, Ending 10,778,061 3,602,215
Stock options [Member]    
Disclosure of continuing involvement in derecognised financial assets [line items]    
Outstanding and exercisable underlying shares, Beginning 3,311,000 1,978,500
Granted 497,500 1,475,000
Cancelled / Forfeited (497,500) (122,500)
Expired (306,000)
Exercised (87,500) (20,000)
Outstanding and exercisable underlying shares, Ending 2,917,500 3,311,000
Stock options outstanding 2,917,500  
Stock options exercisable 2,576,250  
Outstanding and exercisable Weighted Average Exercise Price, Beginning $ 2.12 $ 2.24
Granted 1.30 1.98
Cancelled / Forfeited 2.14 2.54
Expired 1.61
Exercised 1.61 1.62
Outstanding and exercisable Weighted Average Exercise Price, Ending   $ 2.12
Stock options outstanding 2.04  
Stock options exercisable $ 2.14