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Stockholders' Equity (Tables) | 12 Months Ended
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Dec. 31, 2015
Stockholders' Equity Note [Abstract] |
Schedule of Warrant Activity | The following is a summary with respect to warrants outstanding and exercisable at December 31, 2015 and 2014 and activity during the years then ended:
|  | 2015 |  |  | 2014 |
|  |  |  |  | Weighted |  |  |  |  |  | Weighted |
|  |  |  |  | Average |  |  |  |  |  | Average |
|  |  |  |  | Exercise |  |  |  |  |  | Exercise |
|  | Warrants |  |  | Price |  |  | Warrants |  |  | Price |
Outstanding January 1 |  |  | 6,566,385 |  |  | $ | 4.70 |  |  |  | 6,875,586 |  |  | $ | 4.64 |
Granted during the year |  |  | 1,090,911 |  |  |  | 0.40 |  |  |  | 100,000 |  |  |  | 1.56 |
Exercised/transferred |  |  | - |  |  |  | - |  |  |  | (80,645 | ) |  |  | 3.10 |
Lapsed/terminated |  |  | (207,235 | ) |  |  | 3.52 |  |  |  | (328,556 | ) |  |  | 2.91 |
Outstanding at December 31 |  |  | 7,450,061 |  |  | $ | 4.10 |  |  |  | 6,566,385 |  |  | $ | 4.70 |
Exercisable at December 31 |  |  | 6,359,150 |  |  | $ | 4.10 |  |  |  | 6,535,274 |  |  | $ | 4.71 |
Weighted average months remaining |  |  |  |  |  |  | 34.3 |  |  |  |  |  |  |  | 40.0 |
Summary of Stock Option Activity Under Stock Option and Incentive Plans | The following is a summary with respect to options outstanding at December 31, 2015 and 2014 and activity during the years then ended:
|  | 2015 |  |  | 2014 |
|  | Number of Options |  |  | Weighted Average Exercise Price |  |  | Weighted Average Life Remaining |  |  | Number of Options |  |  | Weighted Average Exercise Price |  |  | Weighted Average Life Remaining |
|  |  |  |  |  |  |  | (in years) |  |  |  |  |  |  |  |  | (in years) |
Outstanding at January 1: |  |  | 4,928,291 |  |  |  | 2.92 |  |  |  |  |  |  |  | 4,073,898 |  |  |  | 3.25 |  |  |  |  |
Granted |  |  | 53,550 |  |  |  | 0.60 |  |  |  |  |  |  |  | 1,172,197 |  |  |  | 1.96 |  |  |  |  |
Exercised |  |  | - |  |  |  | - |  |  |  |  |  |  |  | - |  |  |  | - |  |  |  |  |
Lapsed/terminated |  |  | (557,282 | ) |  |  | 2.95 |  |  |  |  |  |  |  | (317,804 | ) |  |  | 3.56 |  |  |  |  |
Outstanding at December 31: |  |  | 4,424,559 |  |  |  | 2.89 |  |  |  | 4.0 |  |  |  | 4,928,291 |  |  |  | 2.92 |  |  |  | 4.0 |
Exercisable at December 31: |  |  | 3,628,495 |  |  |  | 2.77 |  |  |  | 4.6 |  |  |  | 2,806,696 |  |  |  | 2.94 |  |  |  | 5.0 |
Expected to vest at December 31: |  |  | 346,064 |  |  |  | 2.00 |  |  |  | 3.2 |  |  |  | 1,660,169 |  |  |  | 2.46 |  |  |  | 5.8 |
Aggregate intrinsic value of outstanding options at December 31: |  | $ | - |  |  |  |  |  |  |  |  |  |  | $ | - |  |  |  |  |  |  |  |  |
Aggregate intrinsic value of exercisable options at December 31: |  | $ | - |  |  |  |  |  |  |  |  |  |  | $ | - |  |  |  |  |  |  |  |  |
Aggregate intrinsic value of options expected to vest at December 31: |  | $ | - |  |  |  |  |  |  |  |  |  |  | $ | - |  |  |  |  |  |  |  |  |
Schedule of Assumptions Used to Compute the Share-based Compensation Expense for Stock Options and Warrants | The following table shows our weighted average assumptions used to compute the share-based compensation expense for stock options and warrants granted during the years ended December 31, 2015 and 2014:
|  | 2015 |  |  | 2014 |
Volatility |  |  | 72.6 | % |  |  | 67.1 | %
Expected option term |  |  | 2.9 years |  |  |  | 3.5 years |
Risk-free interest rate |  |  | 1.7 | % |  |  | 0.9 | %
Expected forfeiture rate |  |  | 0.0 | % |  |  | 0.0 | %
Expected dividend yield |  |  | 0.0 | % |  |  | 0.0 | %
Summary of Restricted Stock | The following is a summary of activity of restricted stock during the years ended at December 31, 2015 and 2014:
|  | Shares |  |  | Weighted- average Grant Date Fair Value |
Restricted shares outstanding, December 31, 2013 |  |  | 41,176 |  |  | $ | 3.33 |
Restricted shares granted |  |  | 243,750 |  |  |  | 0.48 |
Restricted shares vested |  |  | (20,588 | ) |  |  | 3.33 |
Restricted shares outstanding, December 31, 2014 |  |  | 264,338 |  |  | $ | 0.70 |
Restricted shares granted |  |  | 155,000 |  |  |  | 0.25 |
Restricted shares vested |  |  | (359,338 | ) |  |  | 0.59 |
Restricted shares outstanding, December 31, 2015 |  |  | 60,000 |  |  | $ | 0.22 |

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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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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + 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 (f)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year. + References No definition available. + Details
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- Definition Tabular disclosure of warrants or rights issued. Warrants and rights outstanding are derivative securities that give the holder the right to purchase securities (usually equity) from the issuer at a specific price within a certain time frame. Warrants are often included in a new debt issue to entice investors by a higher return potential. The main difference between warrants and call options is that warrants are issued and guaranteed by the company, whereas options are exchange instruments and are not issued by the company. Also, the lifetime of a warrant is often measured in years, while the lifetime of a typical option is measured in months. Disclose the title of issue of securities called for by warrants and rights outstanding, the aggregate amount of securities called for by warrants and rights outstanding, the date from which the warrants or rights are exercisable, and the price at which the warrant or right is exercisable. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(i)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -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 505 -SubTopic 50 -Section S99 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6784392&loc=d3e188667-122775 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 50 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=51659978&loc=d3e25284-112666 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 28 -Article 5 + Details
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