Escrow Settlement Agreement (Details) (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended	0 Months Ended		3 Months Ended
	Dec. 31, 2013	Jul. 08, 2013	Oct. 16, 2012	Sep. 30, 2013
Escrow Settlement Agreement [Line Items]
Escrow settlement, cash and shares combined value	$ 2.6
NovaMed [Member]
Escrow Settlement Agreement [Line Items]
Cash held in escrow not released			1.4
Common stock held in escrow not released			622,363
Escrow settlement, cash		0.8
Escrow settlement, common stock retained		342,300
Escrow settlement, cash and shares combined value		$ 2.6		$ 2.6