CONDENSED CONSOLIDATED STATEMENT OF EQUITY DEFICIT (Unaudited) (USD $) In Thousands, except Share data	Common Stock	Paid-in-Capital	Accumulated Deficit	Accumulated Other Comprehensive Loss	Total RadNet, Inc.'s Equity	Noncontrolling Interests	Total
Beginning Balance, Amount at Dec. 31, 2012	$ 4	$ 168,415	$ (171,093)	$ 39	$ (2,635)	$ 634	$ (2,001)
Beginning Balance, Shares at Dec. 31, 2012	38,540,482
Issuance of common stock upon exercise of options/warrants, Amount		469			469		469
Issuance of common stock upon exercise of options/warrants, Shares	898,714
Stock-based compensation		952			952
Issuance of restricted stock, Shares	450,000
Sale of a noncontrolling interest in one of our consolidated joint ventures		2,201			2,201	439	(2,640)
Purchase of a controlling interest in a joint venture						979	979
Change in cumulative foreign currency translation adjustment				(59)	(59)		(9)
Net loss			(1,342)		(1,342)	(24)	(1,366)
Ending Balance, Amount at Mar. 31, 2013	$ 4	$ 172,037	$ (172,435)	$ (20)	$ (414)	$ 2,028	$ 1,614
Ending Balance, Shares at Mar. 31, 2013	39,889,196