6. INVESTMENT IN JOINT VENTURES (Details 1) (USD $) In Thousands, unless otherwise specified	9 Months Ended
Sep. 30, 2012	Sep. 30, 2011
Key financial data for joint ventures
Current assets - joint ventures	$ 16,406
Noncurrent assets - joint ventures	39,937
Current liabilities - joint ventures	(6,377)
Noncurrent liabilities - joint ventures	(4,848)
Total net assets -joint ventures	45,118
Book value of Radnet joint venture interests	22,813
Cost in excess of book value of acquired joint venture interests	3,511
Elimination of intercompany profit remaining on Radnet's consolidated balance sheet	258
Total value of Radnet joint venture interests	26,582
Total book value of other joint venture partner interests	22,305
Net revenue	60,954	55,984
Net income	$ 9,011	$ 8,495

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Current liabilities joint ventures

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Noncurrent assets joint ventures

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The net of assets and liabilities.

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Amount of goodwill arising from a business combination, which is the excess of the cost of the acquired entity over the amounts assigned to assets acquired and liabilities assumed.

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Net income after adjustments for dividends on preferred stock (declared in the period) and/or cumulative preferred stock (accumulated for the period).

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The book value of investments in real estate joint ventures including direct and indirect investments.

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Aggregate revenue recognized during the period (derived from goods sold, services rendered, insurance premiums, or other activities that constitute an entity's earning process). For financial services companies, also includes investment and interest income, and sales and trading gains.

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