Note 5 - Patient and Other Receivables, Net (Detail) - Patient and Other Receivables (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Vein Clinic patient and insurance receivables	$ 7,503	$ 7,045
Reserve for uncollectible accounts	(487)	(769)
Subtotal Vein Clinic receivables, net	7,016	6,276
Other receivables	217	96
Total Patient and other receivables, net	$ 7,233	$ 6,372