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Employee Stock Compensation Plans - Grant Date Fair Value (Details) (USD $)
Dec. 16, 2012
May 05, 2010
May 19, 2009
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]      
Option – grant date price (Cdn$) 1.49 2.40 1.55
Options outstanding 165,000 2,065,000 519,000
Expected life yrs. 5.0 5.0 5.0
Expected volatility 0.68 0.56 0.56
Risk free interest rate 0.007 0.022 0.019
Weighted average fair value 0.84 1.19 0.65
Grant date fair value $ 139,000 $ 2,449,000 $ 339,000