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Revenue Recognition and Accounts Receivable - Summary Information for Receivable (Detail) - USD ($)
$ in Thousands
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2016
Receivables [Abstract]      
Patient accounts receivable (net of contractual allowances) $ 5,352 $ 6,458  
Less allowance for doubtful accounts (529) (552) $ (991)
Patient accounts receivable-net $ 4,823 $ 5,906