Gross number of share options (or share units) granted during the period.

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The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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- Definition

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 holders' expected behavior.

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The estimated measure of the percentage amount by which a share price is expected to fluctuate during the expected term of a nonvested share or option award issued to other than an employee.

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The risk-free interest rate assumption that is used in valuing a nonvested share or option award issued to other than an employee.

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Stock-Based Compensation (Assumptions Used in the Black-Scholes Option Pricing Model) (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Risk-free interest rate		0.78%
Expected volatility		75.00%
Expected option life, years		4.10
Weighted-average grant date fair value		$ 3.09		$ 2.81
Options granted	0	6,968	0	773,018
Maximum [Member]
Risk-free interest rate				1.43%
Expected volatility				75.00%
Expected option life, years				4.10
Minimum [Member]
Risk-free interest rate				0.78%
Expected volatility				72.00%
Expected option life, years				4.00