Stock-based compensation |
9 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Sep. 30, 2017 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Stock-based compensation |
Stock-based compensation:
In October 2013, the board of directors approved the 2013 Employee, Director and Consultant Equity Incentive Plan (the “2013 Plan”) pursuant to which the Company may issue options, warrants, restricted stock or other stock-based awards to directors, officers, key employees and other key individuals performing services for the Company. The 2013 Plan has reserved 4,773,992 shares of common stock for issuance. All awards will be approved by the board of directors or a committee of the board of directors to be established for such purpose. At September 30, 2017, 1,675,207 shares remain available for issuance under the 2013 Plan.
The Company’s outstanding stock options and restricted stock have maximum contractual terms of up to ten years, principally vest ratably over five years. Stock options are granted at exercise prices equal to the market price of the Company’s common stock on the date of grant. All equity awards immediately vest upon a liquidation or a change in control event. The Company’s outstanding stock options are exercisable into shares of the Company’s common stock and all unvested shares of the Company's restricted stock will become unrestricted shares of the Company's common stock when vested. The Company measures the cost of employee services received in exchange for an award of equity instruments, including grants of employee stock options and restricted stock awards, based on the fair value of the award at the date of grant in accordance with the modified prospective method. The Company uses the Black-Scholes model for purposes of determining the fair value of stock options granted and recognizes compensation costs ratably over the requisite service period, net of estimated forfeitures. For restricted stock awards, the grant-date fair value is the quoted market price of the stock.
As of September 30, 2017, all 2,142,035 options and 875,000 shares of unvested restricted stock outstanding, respectively, were excluded from the calculation of dilutive earnings per share as their effect would have been anti-dilutive; the exercise prices of such options are above the average market price.
The Company recognized $199,509 and $343,505, for the three months ended September 30, 2017 and 2016, respectively, and $743,928 and $723,433 for the nine months ended September 30, 2017 and 2016, respectively, of non-cash stock-based compensation expense related to options, restricted stock awards and unrestricted stock grants in general and administrative expense in the consolidated statements of operations.
As of September 30, 2017, there was approximately $1.3 million of total unrecognized compensation cost related to unvested share-based option compensation grants, which is expected to be amortized over a weighted-average period of 3.8 years.
A summary of the status of stock option awards and changes during the nine months ended September 30, 2017 is presented below:
The weighted-average grant-date fair value of option awards outstanding as of September 30, 2017 and December 31, 2016 are $1.39 and $1.65, respectively. The weighted average grant date fair value of option awards granted during the nine months ended September 30, 2017 is $0.86. There were no grants during the three months ended September 30, 2017.
A summary of the weighted-average assumptions utilized in the Black-Scholes option-pricing model to value the stock options granted during the nine months ended September 30, 2017 are presented below:
A summary of the status of restricted stock awards and changes during the nine months ended September 30, 2017 are presented below:
On April 10, 2017, the Company granted one board member a grant of 22,167 shares of common stock, which shares vested immediately as of the date thereof. The closing stock price was $2.03. On June 30, 2017, the Company granted four board members each a grant of 19,139 shares of common stock, which shares vested immediately as of the date thereof. The closing stock price was $2.17. The Company recorded compensation expense related to these awards of $205,000 for the nine months ended September 30, 2017. Such grants were awarded consistent with the Company's board compensation practices. There were no grants during the three months ended September 30, 2017.
On August 11, 2016, the Company granted four board members each a grant of 15,267 shares of common stock, which shares vested immediately as of the date thereof. The closing stock price was $2.62. The Company recorded compensation expense related to these awards of $160,000 for the three and nine months ended September 30, 2016.
|