Stockholders' Equity (Tables)
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3 Months Ended |
12 Months Ended |
Mar. 31, 2016 |
Dec. 31, 2015 |
Schedule of Warrants Outstanding [Table Text Block] |
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March 31, |
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December 31, |
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2016 |
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2015 |
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Issued to Investors on July 28, 2010, entitling the holders to purchase
1,034,996
common shares in the Company at an exercise price of $9.00
per common share up to and including July 27, 2017
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1,034,996
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1,034,996
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Issued to Investors on October 25, 2013, entitling the holders to purchase
1,250,000
common shares in the Company at an exercise price of $2.30
per common share up to and including April 24, 2021
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1,117,178
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1,117,178
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Issued to Investors on November 17, 2014, entitling the holders to purchase
2,734,590
common shares in the Company at an exercise price of $2.31
per common share up to and including May 16, 2022
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2,734,590
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2,734,590
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Total |
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4,886,764
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4,886,764
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Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] |
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Weighted |
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Weighted |
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Average |
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Average |
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Options |
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Exercise |
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Grant Date |
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Outstanding |
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Price |
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Fair Value |
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Beginning of the period |
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5,236,909
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3.70
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4.06
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Granted |
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55,500
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1.17
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0.16
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Exercised |
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-
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-
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-
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Forfeited |
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-
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-
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-
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Expired |
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(240,000
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) |
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23.85
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24.87
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End of the period |
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5,052,409
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2.72
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2.13
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Options exercisable |
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3,257,523
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3.49
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2.83
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Weighted |
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Weighted |
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Average |
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Average |
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Options |
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Exercise |
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Grant Date |
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Outstanding |
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Price |
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Fair Value |
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Beginning of the year |
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2,026,564
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9.19
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10.61
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Granted |
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3,491,419
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1.08
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0.74
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Exercised |
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-
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-
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-
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Forfeited |
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(114,407
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) |
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6.63
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6.06
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Expired |
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(166,667
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) |
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13.50
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12.84
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End of the year |
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5,236,909
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3.70
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4.06
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Options exercisable |
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3,442,023
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4.95
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1.68
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Schedule of Non-Vested Shares, Activity [Table Text Block] |
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Weighted- |
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Average Fair |
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Weighted |
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Value |
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Average |
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Shares |
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Grant Date |
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Exercise Price |
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Non-vested Shares
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Non-vested at January 1, 2015 |
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462,307
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1.71
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2.55
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Granted |
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3,491,419
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0.74
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1.08
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Vested |
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(2,158,840
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) |
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0.80
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1.18
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Forfeited |
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-
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-
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-
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Non-vested - December 31, 2015 |
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1,794,886
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0.91
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1.34
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Granted |
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55,500
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0.16
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1.17
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Vested |
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(55,500
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) |
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0.16
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1.17
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Forfeited |
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-
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-
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-
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Non-vested - March 31, 2016 |
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1,794,886
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0.91
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1.34
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Schedule of Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block] |
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Stock Options Outstanding |
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Stock Options Vested |
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Weighted |
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Weighted |
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Average |
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Average |
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Remaining |
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Weighted |
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Remaining |
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Weighted |
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Contractual |
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Number |
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Average |
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Contractual |
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Number |
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Average |
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Life |
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of |
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Exercise |
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Life |
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of |
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Exercise |
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-Years |
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Awards |
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Price |
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-Years |
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Awards |
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Price |
Exercise Prices |
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$0.56
- $1.25
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9.40
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1,981,437
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$0.93
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9.25
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1,222,227
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$0.94
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$1.26
-$2.55
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7.71
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2,027,789
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$1.55
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7.91
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992,113
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$1.51
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$2.56
-$5.00
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2.81
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183,337
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$4.50
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2.81
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183,337
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$4.50
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$5.01
-$10.00
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3.04
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|
543,337
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$6.92
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3.04
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|
543,337
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$6.92
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$10.01
-$15.30
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0.91
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316,509
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$13.07
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0.91
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316,509
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$13.07
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Total |
7.27
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|
5,052,409
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$2.72
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|
6.63
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|
3,257,523
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$3.49
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Stock Options Outstanding |
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Stock Options Vested |
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Weighted |
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Weighted |
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Average |
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Average |
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Remaining |
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Weighted |
|
Remaining |
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|
Weighted |
|
Contractual |
|
Number |
|
Average |
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Contractual |
|
Number |
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Average |
|
Life |
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of |
|
Exercise |
|
Life |
|
of |
|
Exercise |
|
-Years |
|
Awards |
|
Price |
|
-Years |
|
Awards |
|
Price |
Exercise Prices |
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$0.83
- $1.26
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9.6
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3,491,419
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$1.08
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|
9.6
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1,965,629
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$1.06
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$2.55
- $5.00
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3.3
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|
645,644
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|
$3.10
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3.2
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376,548
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$3.50
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$5.01
- $12.90
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3.04
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|
668,177
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|
$7.59
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|
3.04
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|
668,177
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|
$7.59
|
$13.50
-$18.90
|
0.63
|
|
191,669
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|
$14.75
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|
0.63
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|
191,669
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|
$14.75
|
$19.20
-$23.85
|
0.12
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240,000
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|
$23.85
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|
0.12
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|
240,000
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|
$23.85
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Total |
7.21
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|
5,236,909
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$3.70
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|
6.46
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|
3,442,023
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|
$4.95
|
|
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] |
|
Three months ended |
|
Year ended |
|
March 31, |
|
December 31, |
|
2016 |
|
2015 |
|
|
|
|
Average risk-free interest rate |
0.69%
|
|
1.64%
|
Average expected life- years |
1.94
|
|
5.38
|
Expected volatility |
84.54%
|
|
86.66%
|
Expected dividends |
$0.0
|
|
$0.0
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