|
Stockholders' Equity (Tables)
|
12 Months Ended |
|
Dec. 31, 2014
|
Dec. 31, 2013
|
| Schedule of Warrants Outstanding [Table Text Block] |
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December 31, |
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|
2014 |
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|
2013 |
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| Issued to Investors on July 28,2010, entitling the holders to purchase |
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1,034,996
common shares in the Company at an exercise price of
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$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 |
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purchase
1,250,000
common shares in the Company at an exercise
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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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1,250,000
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| Issued to Investors on November 17, 2014, entitling the holders to |
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purchase
2,734,590
common shares in the Company at an exercise
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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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0
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| |
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| Total |
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4,886,764
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2,284,996
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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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Options |
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Average |
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Average |
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Outstanding |
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Exercise |
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Grant Date Fair |
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Price |
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Value |
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| Beginning of the year |
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1,564,257
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|
$ |
11.16
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|
$ |
10.61
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| Granted |
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579,429
|
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|
2.55
|
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|
1.79
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| Exercised |
|
-
|
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|
-
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|
-
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| Forfeited |
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(117,122
|
) |
$ |
-
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|
$ |
-
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| Expired |
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-
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|
$ |
-
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|
$ |
-
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| End of year |
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2,026,564
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$ |
9.19
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$ |
10.61
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| |
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| Options exercisable |
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1,564,257
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|
$ |
11.16
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|
$ |
10.61
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| |
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|
Weighted |
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|
Weighted |
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| |
|
Options |
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Average |
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Average |
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Outstanding |
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Exercise |
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Grant Date Fair |
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Price |
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Value |
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| Beginning of the year |
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1,639,842
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|
$ |
11.46
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|
$ |
10.85
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| Granted |
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-
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-
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-
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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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(7,250
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) |
$ |
6.04
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|
$ |
5.51
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| Expired |
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(68,335
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) |
$ |
18.94
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|
$ |
16.90
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| End of year |
|
1,564,257
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|
$ |
11.16
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|
$ |
10.61
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| |
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| Options exercisable |
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1,530,200
|
|
$ |
11.28
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|
$ |
10.73
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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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| |
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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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$2.55
- $5.00
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4.26
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|
645,644
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$ |
3.10
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4.06
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|
183,337
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$ |
4.50
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$5.01
- $12.90
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4.11
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|
782,584
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$ |
7.45
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4.11
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|
782,584
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|
$ |
7.45
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$13.50
- $18.90
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1.30
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|
358,336
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$ |
14.17
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1.30
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358,336
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$ |
14.17
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$19.20
- $23.85
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1.12
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240,000
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$ |
23.85
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1.12
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|
240,000
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|
$ |
23.85
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| Total |
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3.31
|
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2,026,564
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|
$ |
9.19
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|
3.00
|
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|
1,564,257
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|
$ |
11.16
|
|
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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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$2.55
- $5.00
|
|
5.06
|
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|
183,337
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|
$ |
4.50
|
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|
5.06
|
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|
183,337
|
|
$ |
4.50
|
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|
$5.01
- $12.90
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|
5.11
|
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|
782,584
|
|
$ |
7.45
|
|
|
5.03
|
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|
748,527
|
|
$ |
7.53
|
|
|
$13.50
-$18.90
|
|
2.30
|
|
|
358,336
|
|
$ |
14.17
|
|
|
2.30
|
|
|
358,336
|
|
$ |
14.17
|
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|
$19.20
-$23.85
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|
2.12
|
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|
240,000
|
|
$ |
23.85
|
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|
2.12
|
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|
240,000
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|
$ |
23.85
|
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| Total |
|
4.00
|
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|
1,564,257
|
|
$ |
11.16
|
|
|
3.94
|
|
|
1,530,200
|
|
$ |
11.28
|
|
|
| Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block] |
| Restricted Stock Award Activity |
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|
Weighted |
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| |
|
|
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|
Average |
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| |
|
|
|
|
Grant |
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| |
|
Number of |
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|
Date Fair |
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|
Units |
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|
Value |
|
| Total awards outstanding at December 31, 2012 |
|
43,032
|
|
$ |
6.49
|
|
| Units granted |
|
-
|
|
$ |
-
|
|
| Units Exercised/Released |
|
(28,739
|
) |
$ |
6.99
|
|
| Units Cancelled/Forfeited |
|
-
|
|
$ |
-
|
|
| Total awards outstanding at December 31, 2013 |
|
14,293
|
|
$ |
5.47
|
|
| Units granted |
|
-
|
|
$ |
-
|
|
| Units Exercised/Released |
|
(14,293
|
) |
$ |
5.47
|
|
| Units Cancelled/Forfeited |
|
-
|
|
$ |
-
|
|
| Total awards outstanding at December 31, 2014 |
|
-
|
|
$ |
-
|
|
|
|
| Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] |
| |
|
Year ended |
|
|
Year ended |
|
| |
|
12/31/2014 |
|
|
12/31/2011 |
|
| |
|
|
|
|
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| |
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|
| Average risk-free interest rate |
|
1.68%
|
|
|
3.35%
|
|
| Average expected life- years |
|
5
|
|
|
10
|
|
| Expected volatility |
|
90.44%
|
|
|
94.32%
|
|
| Expected dividends |
|
0
|
|
|
0
|
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|