Stockholders' Equity (Tables) |
3 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Mar. 31, 2016 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Stockholders Equity Tables | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Schedule of assumptions used in calculating the fair value of the warrants |
Assumptions used in calculating the fair value of the warrants at March 31, 2016 are as follows:
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Schedule of fair values and the changes in fair values of the warrants accounted for as derivative liabilities |
The fair values and the changes in fair values of the warrants accounted for as derivative liabilities for the three months ended March 31, 2016 are as follows:
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Schedule of equity compensation plans |
Activity under all of the Companys equity compensation plans during the three months ended March 31, 2016 is summarized below:
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Schedule of the estimated grant date fair values of options granted |
The estimated grant date fair values of options granted during the three months ended March 31, 2016 were calculated using the Black-Scholes valuation model, based on the following assumptions:
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Schedule of share-based compensation expense |
The Company records share-based compensation expense on a straight-line basis over the related vesting period. For the three months ended March 31, 2016 and 2015, share-based compensation expense related to options was:
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Schedule of common stock warrant activity |
Warrants have generally been issued for terms of up to five years. Common stock warrant activity for the three months ended March 31, 2016 was as follows:
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