Boca Oncology Partners (Details) (USD $)	3 Months Ended		6 Months Ended			6 Months Ended	3 Months Ended	6 Months Ended		6 Months Ended	3 Months Ended			3 Months Ended		6 Months Ended			6 Months Ended			12 Months Ended	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014 Member	Jun. 30, 2013	Dec. 31, 2013	Jun. 30, 2014 USNC [Member]	Jun. 30, 2013 Boca Oncology Partners, LLC [Member]	Jun. 30, 2014 Boca Oncology Partners, LLC [Member] sqft	Dec. 31, 2013 Boca Oncology Partners, LLC [Member]	Jun. 30, 2014 Boca Oncology Partners, LLC [Member] USNC [Member]	Jun. 30, 2014 Boca West IMP [Member]	Dec. 31, 2013 Boca West IMP [Member]	Jun. 30, 2012 Boca West IMP [Member]	Jun. 30, 2014 Boca Oncology Partners RE, LLC [Member]	Jun. 30, 2013 Boca Oncology Partners RE, LLC [Member]	Jun. 30, 2014 Boca Oncology Partners RE, LLC [Member]	Jun. 30, 2013 Boca Oncology Partners RE, LLC [Member]	Dec. 31, 2013 Boca Oncology Partners RE, LLC [Member]	Jun. 30, 2014 Boca Oncology Partners RE, LLC [Member] USNC [Member]	Jun. 30, 2014 BOP and BOPRE [Member] sqft	Jun. 30, 2013 BOP and BOPRE [Member]	Dec. 31, 2011 BOP and BOPRE [Member]	Jun. 30, 2014 BOP and USNC's [Member] USNC [Member]
Schedule of Equity Method Investments [Line Items]
Percentage of interest in medical office building (in hundredths)																			20.00%
Area of building (in square feet)								6,000												32,000
Investment in BOP and BOPRE	$ 295,000		$ 295,000		$ 320,000									$ 134,000		$ 134,000		$ 134,000				$ 225,000
Ownership percentage (in hundredths)												3.75%	23.75%	15.40%		15.40%			11.25%			22.50%
Additional investor purchased (in hundredths)																				50.00%		20.00%
Amount loaned to related parties								56,250		28,000
Debt maturity period								5 years
Company loan interest rate (in hundredths)								7.00%
Ownership percentage by outside investors (in hundredths)																31.50%				88.75%
Reduced ownership percentage (in hundredths)						11.25%																	15.40%
Number of members who provided short term loans			3
Short-term loans	462,000		462,000		0
Share of guarantee in mortgage (in hundredths)								14.06%			10.00%
Share of guarantee in outstanding mortgage (in hundredths)											50.00%
Lease term								5 years			10 years
Original balance of mortgage											3,000,000
Outstanding balance on mortgage											2,800,000
Condensed Income Statement Information [Abstract]
Patient revenue	737,000	0	737,000	0			600,000													115,000	1,119,000
Rental income														0	0	0	0
Net income (loss)							(102,000)							0	0	0	0			(108,000)	(89,000)
USNC's equity in income of FOP and FOPRE	27,000	19,000	(12,000)	12,000			(11,000)							0	0	0	0			(12,000)	(11,000)
Condensed Balance Sheet Information [Abstract]
Current assets									640,000					88,000		88,000		132,000
Noncurrent assets									1,831,000					751,000		751,000		707,000
Total assets									2,471,000					839,000		839,000		839,000
Current liabilities									730,000					0		0		0
Noncurrent liabilities									2,126,000					0		0		0
Equity									(385,000)					839,000		839,000		839,000
Total liabilities and equity									$ 2,471,000					$ 839,000		$ 839,000		$ 839,000