Consolidated Statement of Changes in Stockholders' Equity (Unaudited) (Parenthetical) (USD $) In Thousands	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
Stock-based incentive plan, shares	$ 6,134	$ (2,277)
Additional Paid-In Capital
Stock-based incentive plan, shares	$ 6,134	$ (2,277)