| Summary of Stock Warrants Liability Activity |
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Number of
Warrants
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Weighted
Average
Exercise
Price
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Weighted
Average
Remaining
Contractual
Life (in years)
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Weighted
Average
Fair Value
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Outstanding at December 31, 2012
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20,549 |
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$ |
4.83 |
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8.9 |
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$ |
1.64 |
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Granted
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— |
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— |
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— |
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— |
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Exercised
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— |
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— |
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— |
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— |
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Expired/cancelled
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— |
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— |
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— |
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— |
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Outstanding at December 31, 2013
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20,549 |
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$ |
4.83 |
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8.2 |
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$ |
5.95 |
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Granted
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52,695 |
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$ |
4.27 |
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|
10.0 |
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$ |
6.13 |
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Exercised
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(73,244 |
) |
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$ |
4.43 |
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9.5 |
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$ |
6.08 |
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Expired/cancelled
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— |
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— |
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— |
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— |
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Outstanding at December 31, 2014
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— |
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$ |
— |
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— |
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$ |
— |
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