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Stock Options (Tables) | 12 Months Ended
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Dec. 31, 2015
Stock Options. |
Summary of stock option activity |
|  |  |  |  |  | Weighted |
|  |  |  |  |  | Average |
|  |  |  | Weighted |  | Remaining |
|  |  |  | Average |  | Contractual |
|  | Options |  | Exercise Price |  | Term(Years) |
Outstanding at December 31, 2013: |  | 1,969,492 |  | 2.68 |  | 6.61 |
Granted |  | 935,750 |  | 3.57 |  |  |
Forfeited |  | (44,023) |  | (3.78) |  |  |
Exercised |  | (117,401) |  | (1.16) |  |  |
Outstanding at December 31, 2014: |  | 2,743,818 |  | 3.03 |  | 5.94 |
Granted* |  | 946,250 |  | 4.31 |  |  |
Forfeited |  | (290,478) |  | (3.12) |  |  |
Exercised |  | (171,563) |  | (2.99) |  |  |
Outstanding at December 31, 2015 |  | 3,228,027 |  | 3.40 |  | 5.43 |
Exercisable at December 31, 2015 |  | 2,048,052 |  | 2.93 |  | 4.92 |
Schedule of non-vested share-based payment activity with employees |
|  |  |  | Weighted Average |
|  | Number of Options |  | Exercise Price |
Nonvested options - December 31, 2013: |  | 675,196 |  | 2.88 |
Granted |  | 935,750 |  | 3.57 |
Vested |  | (407,437) |  | (3.03) |
Forfeited |  | (44,023) |  | (3.78) |
Nonvested options - December 31, 2014: |  | 1,159,486 |  | 3.37 |
Granted* |  | 946,250 |  | 4.31 |
Vested |  | (635,289) |  | (3.32) |
Forfeited |  | (290,478) |  | (3.12) |
Nonvested options - December 31, 2015: |  | 1,179,969 |  | 4.21 |

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- Definition Tabular disclosure of the changes in outstanding nonvested shares. + 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)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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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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