Shareholders' Equity and Stock-Based Compensation Plans Assumptions (Details) (Stock Options [Member], USD $)	1 Months Ended	12 Months Ended
Jan. 31, 2009	Dec. 31, 2011 years	Dec. 31, 2010 years	Dec. 31, 2009 years
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value	$ 1.53	$ 2.10	$ 1.57
Risk-free interest rate	3.36%	2.35%	2.23%
Volatility of Corporation's stock	3114.00%	2280.00%	2040.00%
Expected dividend yield	228.00%	241.00%	249.00%
Granted, Stock Options	485,000	616,686	578,000
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term		6	6	7

The period of time an equity-based award is expected to be outstanding. An equity-based award's expected term is generally determined based on, among other factors, the instrument's contractual term and the effects of employees' expected exercise and post-vesting employment termination behavior.

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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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