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Equity - Summary of Stock Option Activity (Details)
$ / shares in Units, $ in Thousands
 3 Months Ended
Mar. 31, 2018
USD ($)
$ / shares
shares
Equity [Abstract]  
Number of Options, Outstanding at beginning balance | shares 1,401,489
Number of Options, Granted | shares 60,000
Number of Options, Exercised | shares
Number of Options, Forfeited or expired | shares (7,500)
Number of Options, Outstanding at end balance | shares 1,453,989
Number of Options, Exercisable at end of period | shares 1,400,655
Weighted Average Exercise Price, Outstanding at beginning balance | $ / shares $ 3.45
Weighted Average Exercise Price, Granted at market price | $ / shares 0.23
Weighted Average Exercise Price, Exercised | $ / shares
Weighted Average Exercise Price, Forfeited or expired | $ / shares 0.14
Weighted Average Exercise Price, Outstanding at end balance | $ / shares 3.33
Weighted Average Exercise Price, Exercisable at end of Period | $ / shares $ 3.45
Weighted Average Remaining Contractual Life Outstanding Ending balance 3 years
Weighted Average Remaining Contractual Life Exercisable Ending balance 2 years 10 months 25 days
Aggregate Intrinsic Value Outstanding ending balance | $ $ 25
Aggregate Intrinsic Value Exercisable ending balance | $ $ 20