Quarterly report pursuant to Section 13 or 15(d)

Shareholders' Equity and Capital Stock (Details 5)

v2.4.0.8
Shareholders' Equity and Capital Stock (Details 5)
6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Schedule Of Share Based Compensation Shares Authorized Under Restricted Stock Units By Grant Date [Line Items]    
Expected option life (years) 3 years 5 months 26 days 3 years 4 months 28 days
Expected volatility 66.00% 63.00%
Risk-free interest rate 1.40% 1.10%
Forfeiture rate (options) 4.50% 4.40%
Expected dividend rate 0.00% 0.00%