Shareholders' Equity (Tables)

3 Months Ended

Mar. 31, 2014

Equity [Abstract]

Summary of Activities in Common Stock

The following table details activity in our common stock:

	Three Months ended March 31,
	2014				2013
	Shares		Amount		Shares		Amount
Stock option exercises		156	$	2,024		138	$	1,637
Employee stock plan purchases		10		849		16		670