Stock-based Compensation (Tables)

3 Months Ended

Mar. 31, 2013

Stock-based Compensation

Stock option activity

			Weighted
			Average
			Exercise
	Shares		Price
Outstanding at beginning of period	21,362		$	6.72
Exercised	(7,110	)	5.77
Outstanding at March 31, 2013	14,252		7.19
Exercisable at March 31, 2013	6,581		6.70