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Acquisition of Businesses (Details) (USD $)
In Thousands, unless otherwise specified
0 Months Ended 3 Months Ended 6 Months Ended
Jan. 03, 2012
Jun. 30, 2012
Jun. 30, 2012
Mar. 31, 2012
Schedule of preliminary purchase prices allocation        
Cash paid, net of cash acquired $ 7,180 $ 7,930 $ 7,180  
Seller notes   200 200 350
Total consideration   8,130 8,130 7,530
Estimated fair value of net tangible assets acquired:        
Total current assets   1,341 1,341 947
Total non-current assets   823 823 330
Total liabilities   (581) (581) (521)
Net tangible assets acquired   1,583 1,583 756
Tradename   1,900 1,900  
Referral relationships   1,100 1,100 57
Non compete   300 300 25
Goodwill   11,342 11,342 9,409
Fair value of noncontrolling interest   (8,095) (8,095) (2,717)
Total consideration   $ 8,130 $ 8,130 $ 7,530