Stockholders' Equity (Tables)
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6 Months Ended |
12 Months Ended |
Jun. 30, 2016 |
Dec. 31, 2015 |
Schedule of Warrants Outstanding [Table Text Block] |
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June 30, |
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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
207,000
common shares in the Company at an exercise price of $45.00
per common share up to and including July 27, 2017. These warrants are reported in the liability section of our balance sheet.
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207,000
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207,000
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Issued to Investors on October 25, 2013, entitling the holders to purchase
250,000
common shares in the Company at an exercise price of $11.50
per common share up to and including April 24, 2021. These warrants are reported in the liability section of our balance sheet.
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223,436
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223,436
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Issued to Investors on November 17, 2014, entitling the holders to purchase
546,919
common shares in the Company at an exercise price of $11.55
per common share up to and including May 16, 2022 - reclassified to equity on June 30, 2016, exercise price amended to $6.25
per common share. These warrants are reported in the equity section of our balance sheet on June 30, 2016 and in the liability section of our balance sheet on December 31, 2015.
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546,919
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546,919
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Issued to an Investor on June 28, 2016, entitling the holders to purchase
295,267
common shares in the Company at an exercise price of $0.05
per common share up to and including June 27, 2021. These warrants are reported in the equity section of our balance sheet.
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295,267
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Total
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1,272,622
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977,355
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Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] |
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Weighted |
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Weighted |
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Average |
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Average |
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Options |
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Exercise |
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Grant Date |
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Outstanding |
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Price |
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Fair Value |
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Beginning of the period |
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1,047,450
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$ |
18.50
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$ |
14.55
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Granted |
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465,887
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4.69
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2.96
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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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(50,334
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) |
|
117.27
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121.83
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Expired |
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-
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-
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-
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End of the period |
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1,463,003
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$ |
10.70
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$ |
8.22
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Options exercisable |
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757,383
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$ |
15.89
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$ |
12.63
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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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405,344
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$ |
45.95
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$ |
53.05
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Granted |
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698,323
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5.40
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3.70
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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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(22,883
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) |
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33.15
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30.30
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Expired |
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(33,334
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) |
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67.50
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64.20
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End of the year |
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1,047,450
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$ |
18.50
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$ |
20.30
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Options exercisable |
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688,452
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$ |
24.75
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$ |
8.40
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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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92,467
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$ |
8.55
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$ |
12.75
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Granted |
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698,323
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3.70
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5.40
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Vested |
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(431,789
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) |
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4.00
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5.90
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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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359,001
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$ |
4.55
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$ |
6.70
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Granted |
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465,887
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$ |
4.69
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$ |
2.96
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Vested |
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(119,268
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) |
|
4.25
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7.64
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Forfeited |
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-
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-
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-
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Non-vested - June 30, 2016 |
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705,620
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$ |
3.49
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$ |
5.14
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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 |
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Exercise Prices |
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$2.05
-$4.60
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9.39
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|
814,630
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$ |
4.59
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|
9.40
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|
229,915
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|
$ |
4.57
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|
$4.65
-$6.30
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|
8.24
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349,580
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|
$ |
6.29
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|
8.01
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255,586
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$ |
6.29
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|
$6.35
-$25.00
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|
2.76
|
|
|
129,141
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|
$ |
15.52
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|
|
2.74
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|
|
102,230
|
|
$ |
16.25
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|
$25.00
-$50.00
|
|
2.79
|
|
|
108,677
|
|
$ |
34.61
|
|
|
2.79
|
|
|
108,677
|
|
$ |
34.61
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|
$50.01
-$75.00
|
|
0.69
|
|
|
60,975
|
|
$ |
64.90
|
|
|
0.69
|
|
|
60,975
|
|
$ |
64.90
|
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Total |
|
7.67
|
|
|
1,463,003
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|
$ |
10.70
|
|
|
6.38
|
|
|
757,383
|
|
$ |
15.89
|
|
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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 |
|
|
Awards |
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|
Price |
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|
-Years |
|
|
Awards |
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|
Price |
|
Exercise Prices |
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|
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|
|
|
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|
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$4.15
-$6.30
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|
9.70
|
|
|
698,323
|
|
$ |
5.38
|
|
|
9.58
|
|
|
393,145
|
|
$ |
5.31
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|
$12.75
-$25.00
|
|
3.26
|
|
|
129,141
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|
$ |
15.52
|
|
|
3.20
|
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|
75,321
|
|
$ |
17.50
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|
$25.05
-$64.50
|
|
3.04
|
|
|
133,648
|
|
$ |
37.93
|
|
|
3.04
|
|
|
133,648
|
|
$ |
37.93
|
|
$67.50
-$94.50
|
|
0.63
|
|
|
38,338
|
|
$ |
73.77
|
|
|
0.63
|
|
|
38,338
|
|
$ |
73.77
|
|
$96.00
-$119.25
|
|
0.12
|
|
|
48,000
|
|
$ |
119.25
|
|
|
0.12
|
|
|
48,000
|
|
$ |
119.25
|
|
Total |
|
7.28
|
|
|
1,047,450
|
|
$ |
18.50
|
|
|
6.46
|
|
|
688,452
|
|
$ |
24.73
|
|
|
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] |
|
Six months ended |
|
Year ended |
|
June 30, |
|
December 31, |
|
2016 |
|
2015 |
|
|
|
|
Average risk-free interest rate |
0.70%
|
|
1.64%
|
Average expected life- years |
1.86
|
|
5.38
|
Expected volatility |
84.87%
|
|
86.66%
|
Expected dividends |
$0.0
|
|
$0.0
|
|
|