|
Share Capital (Details 3) (USD $)
|
12 Months Ended |
|
Dec. 31, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
|
Stock Appreciation Rights [Member]
|
|
|
|
| Stock Appreciation Rights [Line Items] |
|
|
|
| Number Outstanding, Beginning balance |
4,633,146 |
4,737,194 |
4,996,655 |
| Number Outstanding, Vested |
0 |
0 |
0 |
| Number Outstanding, Granted |
0 |
0 |
0 |
| Number Outstanding, Exercised |
(4,633,146) |
(104,048) |
(259,461) |
| Number Outstanding, Expired and cancelled |
0 |
0 |
0 |
| Number Outstanding, Ending balance |
0 |
4,633,146 |
4,737,194 |
| Weighted Average Price per Share, Beginning balance |
$ 2.49 |
$ 2.50 |
$ 2.52 |
| Weighted Average Price per Share, Vested |
$ 0 |
$ 0 |
$ 0 |
| Weighted Average Price per Share, Granted |
$ 0 |
$ 0 |
$ 0 |
| Weighted Average Price per Share, Exercised |
$ 2.49 |
$ 2.94 |
$ 2.82 |
| Weighted Average Price per Share, Expired and cancelled |
$ 0 |
$ 0 |
$ 0 |
| Weighted Average Price per Share, Ending Balance |
$ 0 |
$ 2.49 |
$ 2.50 |
| Number Exercisable, Beginning balance |
4,633,146 |
3,100,685 |
2,665,551 |
| Number Exercisable, Ending Balance |
0 |
4,633,146 |
3,100,685 |
| Weighted Average Price per Share, Exercisable, beginning Balance |
$ 2.49 |
$ 2.50 |
$ 2.51 |
| Weighted Average Price per Share, Exercisable, Ending balance |
$ 0 |
$ 2.49 |
$ 2.50 |
|
Non Vested Stock Appreciation Rights [Member]
|
|
|
|
| Stock Appreciation Rights [Line Items] |
|
|
|
| Number Outstanding, Beginning balance |
0 |
1,636,509 |
2,331,104 |
| Number Outstanding, Vested |
0 |
(1,570,539) |
(435,134) |
| Number Outstanding, Granted |
0 |
0 |
0 |
| Number Outstanding, Exercised |
0 |
(65,970) |
(259,461) |
| Number Outstanding, Expired and cancelled |
0 |
0 |
0 |
| Number Outstanding, Ending balance |
0 |
0 |
1,636,509 |