Consolidated Statements Of Stockholders' Equity (Unaudited) (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Statement Of Stockholders Equity [Abstract]
Stock-based incentive plan, shares	100	1,050
Accrued dividends		$ 801
Issuance of shares in common stock offering		15,000,000
Offering issuance costs		$ 2,214