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Stock Options (Details) - $ / shares
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Number of shares    
Begining balnce , shares 1,307,500 1,180,000
Granted 550,000 387,500
Exercised  
Expired (242,500) (260,000)
Ending balance, shares 1,615,000 1,307,500
Weighted average exercise price    
Begining balance, weighted average exercise price $ 1.31 $ 0.97
Granted, weighted average exercise price 1.25 1.73
Exercised, weighted average exercise price 0 0
Expired, weighted average exercise price (1.68) (0.39)
Ending balance, weighted average exercise price $ 1.09 $ 1.31