Annual report pursuant to Section 13 and 15(d)

Shareholders' Equity and Capital Stock (Details 2)

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Shareholders' Equity and Capital Stock (Details 2) (USD $)
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Unvested, Beginning Balance, RSU 826,425 276,365 0
Granted, RSU 273,834 703,572 355,662
Vested, RSU (402,581) (136,789)  
Forfeited, RSU (6,068) (16,723) (79,297)
Unvested, Ending Balance, RSU 691,610 826,425 276,365
Unvested, Beginning Balance, Weighted average grant date fair value $ 1.15 $ 2.87 $ 0
Granted, Weighted average grant date fair value $ 1.23 $ 0.91 $ 2.90
Vested, Weighted average grant date fair value $ 1.89 $ 2.87  
Forfeited, Weighted average grant date fair value $ 0.78 $ 1.66 $ 2.90
Unvested, Ending Balance, Weighted average grant date fair value $ 0.96 $ 1.15 $ 2.87