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Equity - Summary of Stock Option Plans (Details) - $ / shares
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Equity [Abstract]    
Number of Options, Outstanding at beginning balance 1,812,428 1,401,658
Number of Options, Granted at market price 687,654 664,103
Number of Options, Exercised [1] (33,938)
Number of Options, Forfeited or expired (135,164) (219,395)
Number of Options, Outstanding at end balance 2,364,918 1,812,428
Number of Options, Exercisable at end of period 1,778,503 1,128,434
Weighted Average Exercise Price, Outstanding at beginning balance $ 4.51 $ 5.49
Weighted Average Exercise Price, Granted at market price $ 0.75 2.14
Weighted Average Exercise Price, Exercised [1] 2.51
Weighted Average Exercise Price, Forfeited or expired $ 2.91 3.96
Weighted Average Exercise Price, Outstanding at end balance 3.51 4.51
Weighted Average Exercise Price, Exercisable at end of Period $ 4.16 $ 5.56
[1] All shares issued in connection with option exercises were newly issued shares.