Net Income (Loss) Per Share (Tables)

12 Months Ended

Dec. 31, 2012

Net Income (Loss) Per Share [Abstract]

Summary of net income (loss) per common share

	Year ended December 31,
	2012			2011			2010
Weighted average shares outstanding		16,012			12,956			12,886
Less: restricted stock issued		(251	)		(149	)		(135	)
Basic divisor		15,761			12,807			12,751
Dilutive shares:
Restricted stock awards		138			—			—
Stock options		187			—			—
Diluted divisor		16,086			12,807			12,751
Net income (loss)	$	96,308		$	(7,710	)	$	(12,579	)
Net income (loss) per share:
Basic	$	6.11		$	(0.60	)	$	(0.99	)
Diluted	$	5.99		$	(0.60	)	$	(0.99	)