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Long-Term Debt (Narrative) (Details) - USD ($)
1 Months Ended 6 Months Ended 9 Months Ended
Sep. 12, 2019
Aug. 01, 2019
Jun. 01, 2019
Oct. 31, 2018
Oct. 30, 2018
Jun. 30, 2019
Sep. 30, 2019
Dec. 31, 2018
May 08, 2017
Debt Instrument [Line Items]                  
Debt issuance costs             $ 2,626,000 $ 2,797,000  
Credit Agreement [Member] | Capital One, National Association [Member]                  
Debt Instrument [Line Items]                  
Maximum aggregate loan amount available       $ 269,600,000          
Debt instrument, maturity date           May 08, 2023      
Debt instrument total net leverage ratio         4.25%        
Debt issuance costs       900,000          
Credit Agreement [Member] | Capital One, National Association [Member] | Delayed Draw Term Loan [Member]                  
Debt Instrument [Line Items]                  
Maximum aggregate loan amount available       $ 19,600,000          
Credit Agreement [Member] | Capital One, National Association [Member] | Delayed Draw Term Loan [Member] | Alliance Home Health Care [Member]                  
Debt Instrument [Line Items]                  
Proceeds from line of credit   $ 23,500,000              
Credit Agreement [Member] | Capital One, National Association [Member] | Revolving Credit Loan [Member] | VIP Health Care Services [Member]                  
Debt Instrument [Line Items]                  
Proceeds from line of credit     $ 19,600,000            
Credit Agreement [Member] | Capital One, National Association [Member] | Maximum [Member]                  
Debt Instrument [Line Items]                  
Debt instrument total net leverage ratio       3.75%          
Credit Agreement [Member] | Capital One, National Association [Member] | Federal Funds Rate [Member]                  
Debt Instrument [Line Items]                  
Debt instrument variable interest rate margin       0.50%          
Credit Agreement [Member] | Capital One, National Association [Member] | London Interbank Offered Rate (LIBOR)                  
Debt Instrument [Line Items]                  
Debt instrument variable interest rate margin       1.00%          
Credit Agreement [Member] | Capital One, National Association [Member] | London Interbank Offered Rate (LIBOR) | Minimum [Member]                  
Debt Instrument [Line Items]                  
Debt instrument variable interest rate margin       0.00%          
Credit Agreement [Member] | Capital One, National Association [Member] | Based On Applicable Senior Leverage Ratio | Minimum [Member]                  
Debt Instrument [Line Items]                  
Debt instrument variable interest rate margin       0.75%          
Credit Agreement [Member] | Capital One, National Association [Member] | Based On Applicable Senior Leverage Ratio | Maximum [Member]                  
Debt Instrument [Line Items]                  
Debt instrument variable interest rate margin       1.50%          
Credit Agreement [Member] | Capital One, National Association [Member] | Based On Applicable Leverage Ratio [Member] | Minimum [Member]                  
Debt Instrument [Line Items]                  
Debt instrument variable interest rate margin       1.75%          
Credit Agreement [Member] | Capital One, National Association [Member] | Based On Applicable Leverage Ratio [Member] | Maximum [Member]                  
Debt Instrument [Line Items]                  
Debt instrument variable interest rate margin       2.50%          
Credit Agreement [Member] | Capital One, National Association [Member] | Restriction on Dividends [Member] | Maximum [Member]                  
Debt Instrument [Line Items]                  
Aggregate amount of dividends and distributions             7,500,000    
Credit Agreement [Member] | Revolving Credit Loan [Member] | Capital One, National Association [Member]                  
Debt Instrument [Line Items]                  
Increase in credit facility $ 50,000,000                
Maximum aggregate loan amount available 300,000,000     $ 250,000,000     134,100,000 142,900,000  
Debt issuance costs $ 400,000                
Proceeds from line of credit             23,500,000    
Line of credit outstanding amount             $ 43,500,000 $ 20,000,000  
Debt instrument stated interest rate             3.85% 4.35%  
Credit Agreement [Member] | Revolving Credit Loan [Member] | Capital One, National Association [Member] | Term Loan [Member]                  
Debt Instrument [Line Items]                  
Debt instrument stated interest rate             3.86%    
Credit Agreement [Member] | Revolving Credit Loan [Member] | Capital One, National Association [Member] | Minimum [Member]                  
Debt Instrument [Line Items]                  
Fee charged on unused portion of revolving credit facility             0.20%    
Credit Agreement [Member] | Revolving Credit Loan [Member] | Capital One, National Association [Member] | Maximum [Member]                  
Debt Instrument [Line Items]                  
Fee charged on unused portion of revolving credit facility             0.35%    
Existing Credit Agreement [Member] | Capital One, National Association [Member]                  
Debt Instrument [Line Items]                  
Maximum aggregate loan amount available                 $ 250,000,000
Existing Credit Agreement [Member] | Capital One, National Association [Member] | Delayed Draw Term Loan [Member]                  
Debt Instrument [Line Items]                  
Maximum aggregate loan amount available                 80,000,000
Existing Credit Agreement [Member] | Capital One, National Association [Member] | Term Loan [Member]                  
Debt Instrument [Line Items]                  
Maximum aggregate loan amount available                 45,000,000
Existing Credit Agreement [Member] | Revolving Credit Loan [Member] | Capital One, National Association [Member]                  
Debt Instrument [Line Items]                  
Maximum aggregate loan amount available                 125,000,000
Terminated Senior Secured Credit Facility [Member] | Capital One, National Association [Member]                  
Debt Instrument [Line Items]                  
Maximum aggregate loan amount available                 $ 125,000,000