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Stock-Based Compensation Grants (Narrative 1) (Details) (USD $)	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2012 May 2012	Dec. 31, 2012 August 2012	Dec. 31, 2011 May 2011	Dec. 31, 2011 June 2011	Dec. 31, 2011 March 2011
Share-based compensation expense, shares			227,000	440,000	52,000	136,000	85,000
Share-based compensation expense	$ 2,286,000	$ 3,356,000	$ 345,000	$ 562,000	$ 560,000	$ 998,000

Number of shares (or other type of equity) issued during the period as a result of any equity-based compensation plan other than an employee stock ownership plan (ESOP), net of any shares forfeited. Shares issued could result from the issuance of restricted stock, the exercise of stock options, stock issued under employee stock purchase plans, and/or other employee benefit plans.

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