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Summary of Stock Option activity (Details) | Dec. 31, 2016 USD ($) $ / shares | Dec. 31, 2015 USD ($) $ / shares
--- | --- | ---
Summary of Stock Option activity |  |
Outstanding Options | $ | $ 101,188 | $ 28,438
Granted | $ |  | 73,688
Forfeited or cancelled | $ |  | $ (938)
Options expected to vest in the future | $ | 98,250 |
Options exercisable | $ | 2,938 |
Options vested, exercisable and options expected to vest | $ | $ 101,188 |
Weighted Average Exercise Price Per Share - Options |  |
Weighted Average Exercise Price Per Share - Outstanding Options | $ / shares | $ 8.39 | $ 11.9
Weighted Average Exercise Price Per Share - Granted | $ / shares |  | 7.09
Weighted Average Exercise Price Per Share - Forfeited or cancelled | $ / shares |  | $ 13.00
Weighted Average Exercise Price Per Share Options expected to vest in the future | $ / shares | 8.29 |
Weighted Average Exercise Price Per Share Options exercisable | $ / shares | 11.78 |
Weighted Average Exercise Price Per Share Options vested, exercisable and options expected to vest | $ / shares | $ 8.39 |
Weighted Average Remaining Contractual Term - Options |  |
Weighted Average Remaining Contractual Term - Outstanding Options | 9.29 | 9.65
Weighted Average Remaining Contractual Term - Granted |  | 9.53
Weighted Average Remaining Contractual Term Options expected to vest in the future | 9.3 |
Weighted Average Remaining Contractual Term Options exercisable | 8.78 |
Weighted Average Remaining Contractual Term Options vested, exercisable and options expected to vest | 9.29 |

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