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11. STOCK OPTIONS (Details) - $ / shares
 6 Months Ended 12 Months Ended
Jun. 30, 2016
Dec. 31, 2015
Number of shares    
Beginning Balance, Shares 1,190,000 1,126,000
Granted, Shares   317,000
Cancelled or expired, Shares (475,000) (245,000)
Exercised   8,000
Ending Balance, Shares 715,000 1,190,000
Exercisable, Ending balance 557,000  
Exercise price per share    
Exercised, Exercise price per share   $ 1.00
Weighted average exercise price    
Beginning Balance, Weighted average exercise price $ 1.34 1.54
Granted, Weighted average exercise price   0.89
Cancelled or expired, Weighted average exercise price 1.65 1.72
Exercised, Weighted average exercise price   1.00
Ending Balance, Weighted average exercise price 1.13 1.34
Exercisable Weighted average exercise price, Ending balance 1.24  
Minimum [Member]    
Exercise price per share    
Balance, Exercise price per share 0.75 1.21
Granted, Exercise price per share   0.75
Cancelled or expired, Exercise price per share 1.50 1.05
Balance, Exercise price per share 0.75 0.75
Exercisable, Ending balance 1.00  
Maximum [Member]    
Exercise price per share    
Balance, Exercise price per share 2.45 2.45
Granted, Exercise price per share   1.05
Cancelled or expired, Exercise price per share 2.00 2.22
Balance, Exercise price per share 2.45 $ 2.45
Exercisable, Ending balance $ 2.45