Quarterly Financial Data (Tables)

12 Months Ended

Dec. 31, 2012

Selected Quarterly Consolidated Financial Data

Financial results for interim periods do not necessarily indicate trends for any 12-month period. Quarterly results can be affected by the number of procedures performed and the timing of certain expense items (dollars in thousands, except per share amounts):

	2012 Quarters											2011 Quarters
	First		Second			Third			Fourth			First		Second			Third			Fourth
Revenues	$	36,138	$	25,152		$	20,009		$	20,194		$	32,282	$	24,416		$	21,790		$	24,495
Operating income (loss)		3,754		(3,328	)		(3,747	)		(5,990	)		1,980		(2,767	)		(4,102	)		(1,649	)
Income (loss) before income taxes		3,870		(3,166	)		(3,527	)		(5,832	)		2,060		(2,690	)		(3,768	)		(1,670	)
Net income (loss)		3,846		(3,190	)		(3,549	)		(5,624	)		2,019		(2,765	)		(3,800	)		(1,652	)
Income (loss) per share
Basic and Diluted	$	0.20	$	(0.17	)	$	(0.19	)	$	(0.29	)	$	0.11	$	(0.15	)	$	(0.20	)	$	(0.09	)