Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies - Schedule of Net Accounts Receivable Balance Concentrations by Major Category (Details)

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Summary of Significant Accounting Policies - Schedule of Net Accounts Receivable Balance Concentrations by Major Category (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Accounts Notes And Loans Receivable [Line Items]    
Accounts receivable, net $ 30,828 $ 19,872
Net accounts receivable, percentage 100.00% 100.00%
Medicare    
Accounts Notes And Loans Receivable [Line Items]    
Accounts receivable, net $ 7,208 $ 7,441
Net accounts receivable, percentage 23.40% 37.40%
Medicaid Or Other Government    
Accounts Notes And Loans Receivable [Line Items]    
Accounts receivable, net $ 410 $ 550
Net accounts receivable, percentage 1.30% 2.80%
Private Insurance    
Accounts Notes And Loans Receivable [Line Items]    
Accounts receivable, net $ 1,832 $ 3,895
Net accounts receivable, percentage 6.00% 19.60%
Patient Responsibility    
Accounts Notes And Loans Receivable [Line Items]    
Accounts receivable, net $ 2,538 $ 2,060
Net accounts receivable, percentage 8.20% 10.40%
Business To Business And Other Receivables    
Accounts Notes And Loans Receivable [Line Items]    
Accounts receivable, net $ 18,840 $ 5,926
Net accounts receivable, percentage 61.10% 29.80%