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Stock Options (Tables) | 12 Months Ended
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Dec. 31, 2016
Disclosure Of Compensation Related Costs, Share-Based Payments [Abstract] |
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] | The fair value of stock options is estimated on the date of grant using the Black-Scholes option pricing model. The weighted average fair values of the options granted and weighted average assumptions are as follows:
|  | For the Years Ended December 31, |
|  | 2016 |  |  | 2015 |  |  | 2014 |
Weighted average fair value of options granted |  | $ | 1.11 |  |  | $ | 1.36 |  |  | $ | 1.35 |
Risk-free interest rate |  |  | 1.26%-1.93% |  |  |  | 1.73 | % |  |  | 1.68 | %
Expected life (years) |  |  | 5 - 6 |  |  |  | 5 - 6 |  |  |  | 5 |
Expected volatility factor |  |  | 47%-49% |  |  |  | 49 | % |  |  | 55 | %
Expected dividends |  |  | None |  |  |  | None |  |  |  | None |
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] | A summary of option activity under the Plans as of December 31, 2016, and changes during the year then ended, is presented below:
|  |  |  |  |  | Weighted-Average |  |  |
|  |  |  | Weighted - |  | Remaining |  | Aggregate |
|  | Number of |  | Average Exercise |  | Contractual Term |  | Intrinsic |
|  | Options |  | Price |  | (years) |  | Value |
Outstanding at January 1, 2016 |  |  | 3,970,146 |  | $ | 3.02 |  |  |  |  |  |  |
Granted |  |  | 1,470,000 |  |  | 2.55 |  |  |  |  |  |  |
Exercised |  |  | - |  |  | - |  |  |  |  |  |  |
Forfeited/Expired |  |  | (270,977) |  |  | 3.10 |  |  |  |  |  |  |
Outstanding at December 31, 2016 |  |  | 5,169,169 |  | $ | 2.88 |  |  | 5.76 |  | $ | 38,000 |
Exercisable at December 31, 2016 |  |  | 2,689,943 |  | $ | 3.06 |  |  | 4.39 |  | $ | 7,887 |
Vested and Expected to Vest at December 31, 2016 |  |  | 5,169,169 |  | $ | 2.88 |  |  | 5.76 |  | $ | 38,000 |

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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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