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Share-based compensation | 12 Months Ended
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Dec. 31, 2020
Share-based compensation |
Share-based compensation | Note 11 - Share-Based Compensation Share-based compensation represents the cost related to share-based awards, typically stock options or stock grants, granted to employees, non-employees, officers and directors. Share-based compensation is measured at grant date, based on the estimated aggregate fair value of the award on the grant date, and such amount is charged to compensation expense on a straight-line basis over the requisite service period. For the years ended December 31, 2020 and 2019, the share-based compensation expense of $0.7 million and $1.8 million, respectively, is reflected in General and administrative expenses in the consolidated Statements of Operations. Share-based awards have historically been made as stock options, and recently also as stock grants, issued pursuant to the terms of the Company’s stock option and stock incentive plans, (collectively, the “Plans”), described below. The Plans may be administered by the Board of Directors or the Compensation Committee of the Board or by another committee appointed by the Board from among its members as provided in the Plans. Presently, the Plans are administered by the Company’s Compensation Committee of the Board of Directors. As of December 31, 2020 there were 4,070,936 shares of the Company’s common stock available under the Plans for issuance for future stock option grants or other stock based awards. Stock option awards, which allow the recipient to purchase shares of the Company’s common stock at a fixed price, are typically granted at an exercise price equal to the Company’s stock price at the date of grant. Typically, the Company’s stock option awards have vested from immediately to two years from the grant date and have had a contractual term ranging from three to ten years. ISOs granted under the Plans may not be granted at a price less than the fair market value of the common stock on the date of grant (or 110% of fair market value in the case of persons holding 10% or more of the voting stock of the Company). Nonqualified options granted under the Plans may not be granted at a price less than the fair market value of the common stock. Options granted under the Plans expire not more than ten years from the date of grant (five years in the case of ISOs granted to persons holding 10% or more of the voting stock of the Company). Effective September 17, 2014, the Company adopted its 2014 Stock Incentive Plan (“2014 Plan”) pursuant to which 3,000,000 shares of common stock were reserved for issuance (i) upon the exercise of options, designated as either ISOs under the Code or nonqualified options, or (ii) as stock, deferred stock or other stock-based awards. ISOs may be granted under the 2014 Plan to employees and officers of the Company. Non-qualified options, stock, deferred stock or other stock-based awards may be granted to consultants, directors (whether or not they are employees), employees or officers of the Company. Stock appreciation rights may also be issued in tandem with stock options. Unless the 2014 Plan is sooner terminated, the ability to grant options or other awards under the 2014 Plan will expire on September 17, 2024. Effective June 7, 2018, the Company adopted its 2018 Stock Incentive Plan (“2018 Plan”) pursuant to which 4,000,000 shares of common stock were reserved for issuance (i) upon the exercise of options, designated as either ISOs under the Code or nonqualified options, or (ii) as stock, deferred stock or other stock-based awards. ISOs may be granted under the 2018 Plan to employees and officers of the Company. Non-qualified options, stock, deferred stock or other stock-based awards may be granted to consultants, directors (whether or not they are employees), employees or officers of the Company. Stock appreciation rights may also be issued in tandem with stock options. Unless the 2018 Plan is sooner terminated, the ability to grant options or other awards under the 2018 Plan will expire on June 7, 2028. Effective June 11, 2020, the Company adopted its 2020 Stock Incentive Plan ("2020 Plan") pursuant to which 3,000,000 shares of common stock were reserved for issuance (i) upon the exercise of options, designated as either ISOs under the Code or nonqualified options, or (ii) as stock, deferred stock or other stock-based awards. ISOs may be granted under the 2020 Plan to employees and officers of the Company. Non-qualified options, stock, deferred stock or other stock-based awards may be granted to consultants, directors (whether or not they are employees), employees or officers of the Company. Stock appreciation rights may also be issued in tandem with stock options. Unless the 2020 Plan is sooner terminated, the ability to grant options or other awards under the 2020 Plan will expire on June 11, 2030. All stock options have been granted to employees and non-employees at exercise prices equal to or in excess of the market value on the date of the grant. The Company determines the fair value of share based awards at the grant date by using the Black-Scholes option-pricing model, and has utilized the “simplified” method, as prescribed by the SEC’s Staff Accounting Bulletin (“SAB”) No.110, Share-Based Payment, to compute expected lives of share based awards with the following weighted-average assumptions:
Years ended |  |  |  |  |
December 31, |  | 2020 |  | 2019 |
Assumptions |  |  |  |  |
Dividend yield |  | 0 | % | 0 | %
Risk free interest rate |  | 0.27%-0.29 | % | 1.43%-2.47 | %
Expected volatility |  | 101%-103 | % | 65%-76 | %
Expected lives |  | 2.75-5 years |  | 3-5 years |
A summary of the activity for the Company’s Plans for the indicated periods is presented below:
|  |  |  | Weighted
|  |  |  | Average
Stock Option Plan Totals |  | Shares |  | Exercise Price
Outstanding at December 31, 2018 |  | 4,415,397 |  | $ | 1.20
-Cancelled |  | (527,820) |  | $ | 1.23
-Exercised |  | (10,000) |  | $ | 0.89
-Granted |  | 3,164,800 |  | $ | 0.79
Outstanding at December 31, 2019 |  | 7,042,377 |  | $ | 1.01
-Cancelled |  | — |  | $ | —
-Exercised |  | (1,967,562) |  | $ | 0.91
-Granted |  | 254,700 |  | $ | 1.11
Outstanding at December 31, 2020 |  | 5,329,515 |  | $ | 1.06
Options to purchase 254,700 shares were granted in 2020, of which 187,132 shares vested in 2020, and 67,568 will vest in 2021. The following is the weighted average contractual life in years and the weighted average exercise price at December 31, 2020 and 2019 of:
|  |  |  | Weighted |  |  |
|  |  |  | Average |  |  |
|  |  |  | Remaining |  | Weighted
|  | Number of |  | Contractual |  | Average
December 31, 2020 |  | Options |  | Life |  | Exercise Price
Options outstanding |  | 5,329,515 |  | 3.55 |  | $ | 1.06
Options vested |  | 5,261,947 |  | 3.54 |  | $ | 1.05
Options unvested |  | 67,568 |  | 4.71 |  | $ | 1.23
|  |  |  | Weighted |  |  |
|  |  |  | Average |  |  |
|  |  |  | Remaining |  | Weighted
|  | Number of |  | Contractual |  | Average
December 31, 2019 |  | Options |  | Life |  | Exercise Price
Options outstanding |  | 7,042,377 |  | 5.0 years |  | $ | 1.01
Options vested |  | 5,922,377 |  | 4.0 years |  | $ | 1.06
Options unvested |  | 1,120,000 |  | 10.0 years |  | $ | 0.75
The intrinsic values of options outstanding at December 31, 2020 and 2019 are $0.7 million and $0.7 million, respectively. The intrinsic value of options unvested at December 31, 2020 and 2019 are $0.0 million and $0.3 million, respectively. The intrinsic values of options vested and exercised during the years ended 2020 and 2019 were as follows:
|  | 2020 |  | 2019
Intrinsic value of options vested |  | $ | 393,952 |  | $ | 436,000
Intrinsic value of options exercised |  | $ | 843,893 |  | $ | 11,100

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