NOTE 15 - SUPPLEMENTAL GUARANTOR INFORMATION (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
CURRENT ASSETS
Cash and cash equivalents	$ 362	$ 2,455	$ 627	$ 10,094
Accounts receivable, net	129,194	128,432
Current portion of deferred tax assets	7,607
Prepaid expenses and other current assets	18,737	19,140
Total current assets	155,900	152,327
PROPERTY AND EQUIPMENT, NET	216,560	215,527
OTHER ASSETS
Goodwill	193,871	159,507
Other intangible assets	51,674	53,105
Deferred financing costs	11,977	13,490
Investment in joint ventures	28,598	22,326
Deferred tax assets, net of current portion	52,790
Deposits and other	3,749	2,906
Total assets	715,119	619,188
CURRENT LIABILITIES
Accounts payable, accrued expenses and other	105,929	103,101
Due to affiliates	1,602	3,762
Deferred revenue	1,273	1,076
Current portion of notes payable	4,703	6,608
Current portion of deferred rent	1,164	999
Current portion of obligations under capital leases	3,942	6,834
Total current liabilities	118,613	122,380
LONG-TERM LIABILITIES
Deferred rent, net of current portion	15,850	12,407
Deferred tax liabilities, net		277
Line of credit	33,000	58,000
Notes payable, net of current portion	537,009	484,046
Obligations under capital lease, net of current portion	3,753	3,338
Other non-current liabilities	8,895	8,547
Total liabilities	717,120	688,995
EQUITY DEFICIT
Total RadNet, Inc.'s equity (deficit)	(2,635)	(70,756)
Noncontrolling interests	634	949
Total equity (deficit)	(2,001)	(69,807)	(82,473)	(74,761)
Total liabilities and stockholders' equity (deficit)	715,119	619,188
Parent
OTHER ASSETS
Investment in subsidiaries	(2,635)	(70,756)
Total assets	(2,635)	(70,756)
EQUITY DEFICIT
Total RadNet, Inc.'s equity (deficit)	(2,635)	(70,756)
Total equity (deficit)	(2,635)	(70,756)
Total liabilities and stockholders' equity (deficit)	(2,635)	(70,756)
Subsidiary Issuer [Member]
CURRENT ASSETS
Cash and cash equivalents	362	1,366
Prepaid expenses and other current assets	9,735	11,858
Total current assets	10,097	13,224
PROPERTY AND EQUIPMENT, NET	48,025	46,445
OTHER ASSETS
Goodwill	48,954	42,784
Other intangible assets	170	50
Deferred financing costs	11,977	13,490
Investment in subsidiaries	342,796	249,763
Deposits and other	1,821	1,279
Total assets	463,840	367,035
CURRENT LIABILITIES
Intercompany	(176,217)	(160,017)
Accounts payable, accrued expenses and other	57,939	50,262
Current portion of notes payable	3,500	2,981
Current portion of deferred rent	574	502
Current portion of obligations under capital leases	1,186	2,996
Total current liabilities	(113,018)	(103,276)
LONG-TERM LIABILITIES
Deferred rent, net of current portion	9,579	7,734
Line of credit	33,000	58,000
Notes payable, net of current portion	536,248	474,165
Obligations under capital lease, net of current portion	666	1,168
Total liabilities	466,475	437,791
EQUITY DEFICIT
Total RadNet, Inc.'s equity (deficit)	(2,635)	(70,756)
Total equity (deficit)	(2,635)	(70,756)
Total liabilities and stockholders' equity (deficit)	463,840	367,035
Guarantor Subsidiaries [Member]
CURRENT ASSETS
Cash and cash equivalents
Accounts receivable, net	76,838	78,229
Current portion of deferred tax assets	7,607	2,300
Prepaid expenses and other current assets	8,308	6,651
Total current assets	92,753	87,180
PROPERTY AND EQUIPMENT, NET	168,401	168,213
OTHER ASSETS
Goodwill	144,072	115,878
Other intangible assets	51,394	52,916
Investment in subsidiaries	9,217	9,974
Investment in joint ventures	28,598	22,326
Deferred tax assets, net of current portion	52,790
Deposits and other	1,928	1,627
Total assets	549,153	458,114
CURRENT LIABILITIES
Intercompany	138,223	124,679
Accounts payable, accrued expenses and other	41,696	45,324
Due to affiliates	1,602	3,762
Deferred revenue	1,273	1,076
Current portion of notes payable	1,203	3,627
Current portion of deferred rent	590	497
Current portion of obligations under capital leases	2,756	3,838
Total current liabilities	187,343	182,803
LONG-TERM LIABILITIES
Deferred rent, net of current portion	6,271	4,673
Deferred tax liabilities, net		277
Notes payable, net of current portion	761	9,881
Obligations under capital lease, net of current portion	3,087	2,170
Other non-current liabilities	8,895	8,547
Total liabilities	206,357	208,351
EQUITY DEFICIT
Total RadNet, Inc.'s equity (deficit)	342,796	249,763
Total equity (deficit)	342,796	249,763
Total liabilities and stockholders' equity (deficit)	549,153	458,114
Non-Guarantor Subsidiaries [Member]
CURRENT ASSETS
Cash and cash equivalents		1,089
Accounts receivable, net	52,356	50,203
Prepaid expenses and other current assets	694	631
Total current assets	53,050	51,923
PROPERTY AND EQUIPMENT, NET	134	869
OTHER ASSETS
Goodwill	845	845
Other intangible assets	110	139
Total assets	54,139	53,776
CURRENT LIABILITIES
Intercompany	37,994	35,338
Accounts payable, accrued expenses and other	6,294	7,515
Total current liabilities	44,288	42,853
LONG-TERM LIABILITIES
Total liabilities	44,288	42,853
EQUITY DEFICIT
Total RadNet, Inc.'s equity (deficit)	9,217	9,974
Noncontrolling interests	634	949
Total equity (deficit)	9,851	10,923
Total liabilities and stockholders' equity (deficit)	54,139	53,776
Eliminations [Member]
OTHER ASSETS
Investment in subsidiaries	(349,378)	(188,981)
Total assets	(349,378)	(188,981)
EQUITY DEFICIT
Total RadNet, Inc.'s equity (deficit)	(349,378)	(188,981)
Total equity (deficit)	(349,378)	(188,981)
Total liabilities and stockholders' equity (deficit)	(349,378)	(188,981)
Consolidated
CURRENT ASSETS
Cash and cash equivalents	362	2,455
Accounts receivable, net	129,194	128,432
Current portion of deferred tax assets	7,607	2,300
Prepaid expenses and other current assets	18,737	19,140
Total current assets	155,900	152,327
PROPERTY AND EQUIPMENT, NET	216,560	215,527
OTHER ASSETS
Goodwill	193,871	159,507
Other intangible assets	51,674	53,105
Deferred financing costs	11,977	13,490
Investment in joint ventures	28,598	22,326
Deferred tax assets, net of current portion	52,790
Deposits and other	3,749	2,906
Total assets	715,119	619,188
CURRENT LIABILITIES
Accounts payable, accrued expenses and other	105,929	103,101
Due to affiliates	1,602	3,762
Deferred revenue	1,273	1,076
Current portion of notes payable	4,703	6,608
Current portion of deferred rent	1,164	999
Current portion of obligations under capital leases	3,942	6,834
Total current liabilities	118,613	122,380
LONG-TERM LIABILITIES
Deferred rent, net of current portion	15,850	12,407
Deferred tax liabilities, net		277
Line of credit	33,000	58,000
Notes payable, net of current portion	537,009	484,046
Obligations under capital lease, net of current portion	3,753	3,338
Other non-current liabilities	8,895	8,547
Total liabilities	717,120	688,995
EQUITY DEFICIT
Total RadNet, Inc.'s equity (deficit)	(2,635)	(70,756)
Noncontrolling interests	634	949
Total equity (deficit)	(2,001)	(69,807)
Total liabilities and stockholders' equity (deficit)	$ 715,119	$ 619,188