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Stock-Based Compensation Plans (Tables) | 12 Months Ended
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Dec. 31, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Schedule of share-based compensation expense | Stock compensation expense recorded as a component of equity consisted of the following for the years ended December 31:
|  | 2015 |  | 2014 |  | 2013
Share-based compensation - employees |  | $ | 456,749 |  |  | $ | 660,963 |  |  | $ | 614,818 |
Share-based compensation - nonemployees |  | 165,754 |  |  | 99,931 |  |  | 56,116 |
Total share-based compensation |  | $ | 622,503 |  |  | $ | 760,894 |  |  | $ | 670,934 |
Schedule of stock options activity | Stock option activity for 2015 and 2014 was as follows:
|  | Number of shares |  | Weighted-average exercise price per share |  | Weighted- average remaining contractual term (years) |  | Aggregate intrinsic value
Outstanding, December 31, 2013 |  | 356,496 |  |  | $ | 6.96 |  |  | 1.0 |  | $ | 360 |
Options granted |  | — |  |  | — |  |  |  |  |
Options exercised |  | — |  |  | — |  |  |  |  |
Options forfeited or expired |  | (198,140 | ) |  | 6.46 |  |  |  |  |
Outstanding, December 31, 2014 |  | 158,356 |  |  | 7.62 |  |  | 0.4 |  | 2,320 |
Options granted |  | — |  |  | — |  |  |  |  |
Options exercised |  | (5,652 | ) |  | 5.75 |  |  |  |  |
Options forfeited or expired |  | (140,404 | ) |  | 7.41 |  |  |  |  |
Outstanding, December 31, 2015 |  | 12,300 |  |  | 10.89 |  |  | 1.6 |  | $ | — |
Exercisable at December 31, 2015 |  | 12,300 |  |  | $ | 10.89 |  |  | 1.6 |  | $ | — |
Schedule of stock options activity, additional disclosures | Information related to the stock option plans during 2015, 2014 and 2013 was as follows:
|  | 2015 |  | 2014 |  | 2013
Intrinsic value of options exercised |  | $ | 3,875 |  |  | $ | — |  |  | $ | 212,444 |
Weighted-average fair value of options exercised |  | $ | 3.26 |  |  | $ | — |  |  | $ | 0.12 |
Schedule of restricted stock activity | Restricted stock activity was as follows:
|  | Number of shares |  | Weighted- average grant-date fair value
Nonvested, December 31, 2013 |  | 520,584 |  |  | $ | 5.05 |
Shares granted |  | 219,734 |  |  | 4.68 |
Shares vested |  | (11,300 | ) |  | 4.78 |
Shares forfeited |  | (36,181 | ) |  | 5.41 |
Nonvested, December 31, 2014 |  | 692,837 |  |  | 4.92 |
Shares granted |  | 225,661 |  |  | 6.72 |
Shares vested |  | (81,270 | ) |  | 5.22 |
Shares forfeited |  | (97,179 | ) |  | 5.49 |
Nonvested, December 31, 2015 |  | 740,049 |  |  | 5.36 |

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- Definition Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet and income statement for the period. This may include the reporting line for the costs and the amount capitalized and expensed. + 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 (h)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 14.F) -URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 -Section F + Details
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