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STOCK OPTIONS (Tables) | 12 Months Ended
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Dec. 31, 2015
Employees |
STOCK OPTION EXERCISES |
Summary of options outstanding |
|  | Years Ended December 31, |
|  | 2015 |  | 2014 |  | 2013 |
|  | Shares |  | Weighted Average Exercise Price |  | Shares |  | Weighted Average Exercise Price |  | Shares |  | Weighted Average Exercise Price |
Outstanding at beginning of period |  | 2,386,736 |  | $ | 0.95 |  | 2,820,631 |  | $ | 0.95 |  | 3,367,081 |  | $ | 0.95 |
Granted |  | — |  | $ | — |  | — |  | $ | — |  | 50,000 |  | $ | 1.46 |
Exercised |  | (259,977 | ) | $ | (1.05 | ) | (418,195 | ) | $ | (0.95 | ) | (584,450 | ) | $ | (0.92 | )
Forfeited |  | (1,690 | ) | $ | (1.30 | ) | (15,700 | ) | $ | (1.37 | ) | (12,000 | ) | $ | (2.38 | )
Outstanding at end of period |  | 2,125,069 |  | $ | 0.94 |  | 2,386,736 |  | $ | 0.95 |  | 2,820,631 |  | $ | 0.95 |
Exercisable at end of period |  | 2,125,069 |  | $ | 0.94 |  | 2,386,736 |  | $ | 0.95 |  | 2,820,631 |  | $ | 0.95 |
Schedule of information about stock options by range of exercise prices | The following table summarizes information about Director, officer, and employee options outstanding under the aforementioned plans at December 31, 2015:
Exercise Prices |  | Shares Outstanding |  | Weighted Average Remaining Contractual Life |  | Shares Exercisable |
$ | 1.30 |  | 495,366 |  | 2.88 |  | 495,366 |
$ | 1.46 |  | 50,000 |  | 7.37 |  | 50,000 |
$ | 0.81 |  | 1,579,703 |  | 3.54 |  | 1,579,703 |
Non Employees |
STOCK OPTION EXERCISES |
Summary of options outstanding |
|  | Years Ended December 31, |
|  | 2015 |  | 2014 |  | 2013 |
|  | Shares |  | Weighted Average Exercise Price |  | Shares |  | Weighted Average Exercise Price |  | Shares |  | Weighted Average Exercise Price |
Outstanding at beginning of period |  | 70,000 |  | $ | 0.81 |  | 70,000 |  | $ | 0.81 |  | 70,000 |  | $ | 0.81 |
Granted |  | — |  | — |  | — |  | — |  | — |  | — |
Exercised |  | (12,500 | ) | (0.81 | ) | — |  | — |  | — |  | — |
Forfeited |  | — |  | $ | — |  | — |  | — |  | — |  | $ | — |
Outstanding at end of period |  | 57,500 |  | $ | 0.81 |  | 70,000 |  | $ | 0.81 |  | 70,000 |  | $ | 0.81 |
Exercisable at end of period |  | 57,500 |  | $ | 0.81 |  | 70,000 |  | $ | 0.81 |  | 70,000 |  | $ | 0.81 |
Schedule of information about stock options by range of exercise prices | The following table summarizes information about non-employee options outstanding under the aforementioned plans at December 31, 2015:
Exercise Price |  | Shares Outstanding |  | Weighted Average Remaining Contractual Life |  | Shares Exercisable |
$ | 0.81 |  | 57,500 |  | 3.54 |  | 57,500 |

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- Definition Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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