Commitments and Contingencies (Details) (USD $)	1 Months Ended		3 Months Ended	12 Months Ended
	Apr. 30, 2014	Sep. 30, 2010	Mar. 31, 2009	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2009	Dec. 31, 2008
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2015				$ 40,000
2016				42,000
2017				43,000
2018				11,000
Total future rental payments				136,000
Rent expense				43,000	40,000
Gamma Knives [Abstract]
Cost of new equipment installed					2,880,000	3,742,000	3,742,000
Equipment financed term			7 years			7 years	7 years
First lease term				6 years
Commitment for lease financing for replacement equipment and restoration				4,700,000
First payment due				78,000
Interest on lease				18,000
Lease amount for cost of construction				250,000
First lease payment due for the cost of construction				12,000
First interest lease payment on cost of construction				1,000
Number of years cobalt should be reloaded for each gamma knife, minimum				5 years
Number of years cobalt should be reloaded for each gamma knife, maximum				10 years
Maintenance Contract [Abstract]
Maintenance agreement	5 years	5 years
Monthly maintenance agreement cost	20,000	20,000
Warrant term of maintenance agreement	1 year
Product Liability [Abstract]
Professional medical and general liability policies limits				3,000,000
FOPRE [Member]
Guarantee of Mortgages [Abstract]
Share of guarantee in mortgage (in hundredths)				20.00%
Mortgage term of guarantee				10 years
Original balance of mortgage				1,534,000
Outstanding balance on mortgage				1,447,000	1,484,000
Neuro Partners, LLC [Member]
Loss Contingencies [Line Items]
Share of guarantee in lease obligation (in hundredths)				20.00%
Operating lease payable				1,660,000	2,013,000
Lease term				7 years
Option to purchase equipment				490,000
Florida Oncology Partners R E LLC [Member]
Loss Contingencies [Line Items]
Share of guarantee in lease obligation (in hundredths)				25.00%
Operating lease payable				3,398,000	4,220,000
Lease term				7 years
Maximum guarantee				1,433,000
Boca Oncology Partners LLC [Member]
Loss Contingencies [Line Items]
Share of guarantee in lease obligation (in hundredths)				14.06%
Lease term				5 years
Boca West IMP [Member] | FOPRE [Member]
Guarantee of Mortgages [Abstract]
Share of guarantee in mortgage (in hundredths)				10.00%
Mortgage term of guarantee				10 years
Original balance of mortgage				3,000,000
Outstanding balance on mortgage				$ 2,730,000	$ 2,823,000
Share of guarantee in outstanding mortgage (in hundredths)				50.00%