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CAPITAL STOCK - Schedule of Weighted Averages Of The Assumptions Used In Estimating Fair Value (Details)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Notes to Financial Statements
Risk-free interest rate	38.00%	64.00%	110.00%
Expected lives	2 years	3 years	3 years
Expected volatility	57.00%	70.00%	66.00%
Expected dividend yield	4.30%	0.00%	0.00%

The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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