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Equity - Summary of Stock Option Plans (Details)
$ / shares in Units, $ in Thousands
 3 Months Ended
Mar. 31, 2017
USD ($)
$ / shares
shares
Equity [Abstract]  
Number of Options, Outstanding at beginning balance | shares 2,050,369
Number of Options, granted | shares 90,000
Number of Options, exercised | shares
Number of Options, forfeited or expired | shares (229,879)
Number of Options, Outstanding at end balance | shares 1,910,490
Number of Options, Exercisable at end of period | shares 1,397,904
Weighted Average Exercise Price, Outstanding at beginning balance | $ / shares $ 3.62
Weighted Average Exercise Price, granted | $ / shares 0.25
Weighted Average Exercise Price, exercised | $ / shares
Weighted Average Exercise Price, forfeited or expired | $ / shares 1.74
Weighted Average Exercise Price, Outstanding at end balance | $ / shares 3.56
Weighted Average Exercise Price, Exercisable at end of Period | $ / shares $ 3.80
Weighted average remaining contractual terms, outstanding 3 years 7 months 6 days
Weighted average remaining contractual terms, exercisable 3 years 4 months 24 days
Aggregate intrinsic value, outstanding | $ $ 25
Aggregate intrinsic value, exercisable | $ $ 15