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FINANCIAL INSTRUMENTS (Details 2) - USD ($)
Dec. 31, 2017
Dec. 31, 2016
Jan. 01, 2016
Dec. 31, 2015
Jul. 31, 2015
Disclosure of fair value measurement of assets [line items]          
Cash $ 3,419,532 $ 11,779,718 $ 5,401,109    
Short-term investments 1,000,000 10,000,000   $ 10,000,000
Amounts receivable 4,634,997 3,050,012 2,695,315    
Long-term investments 33,773 26,717 27,971    
Warrant liability 1,161,109 $ 1,629,797  
Level 1 of fair value hierarchy [Member]          
Disclosure of fair value measurement of assets [line items]          
Cash 3,419,532        
Short-term investments 1,000,000        
Amounts receivable        
Long-term investments 33,773        
Warrant liability        
Total financial assets and liabilities 4,453,305        
Level 2 of fair value hierarchy [Member]          
Disclosure of fair value measurement of assets [line items]          
Cash        
Short-term investments        
Amounts receivable 4,634,997        
Long-term investments        
Warrant liability        
Total financial assets and liabilities 4,634,997        
Level 3 of fair value hierarchy [Member]          
Disclosure of fair value measurement of assets [line items]          
Cash        
Short-term investments        
Amounts receivable        
Long-term investments        
Warrant liability (1,161,109)        
Total financial assets and liabilities $ (1,161,109)