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Stock-Based Compensation (Stock Grant Activity) (Details) (USD $)	Mar. 31, 2013	Dec. 31, 2012	Mar. 31, 2012	Dec. 31, 2011
Stock-Based Compensation [Abstract]
Non-vested stock awards, Shares	48,270	48,270	29,200	29,200
Non-vested stock awards, Shares	48,270	48,270	29,200	29,200
Non-vested stock awards, Weighted Average Stock Price	$ 11.39	$ 11.39	$ 8.67	$ 8.67
Non-vested stock awards, Weighted Average Stock Price	$ 11.39	$ 11.39	$ 8.67	$ 8.67

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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- Definition

The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units.

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