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NOTES PAYABLE AND AMENDED CREDIT AGREEMENT (Details)
1 Months Ended 3 Months Ended 12 Months Ended
Mar. 04, 2019
USD ($)
Installment
Aug. 31, 2018
USD ($)
Clinic
Installment
Apr. 30, 2018
USD ($)
Installment
Feb. 28, 2018
USD ($)
Clinic
Apr. 30, 2019
USD ($)
Nov. 30, 2017
USD ($)
Mar. 31, 2017
USD ($)
Jan. 31, 2016
USD ($)
Mar. 31, 2019
USD ($)
Dec. 31, 2018
Clinic
Dec. 05, 2013
USD ($)
Debt Instruments [Abstract]                      
Number of clinic practices acquired | Clinic   4   2           5  
2018 Acquisition [Member] | August 2019 [Member]                      
Debt Instruments [Abstract]                      
Acquisition cost payable in installments including accrued interest   $ 200,000                  
2018 Acquisition [Member] | August 2020 [Member]                      
Debt Instruments [Abstract]                      
Acquisition cost payable in installments including accrued interest   $ 200,000                  
Industrial Injury Prevention [Member] | Subsequent Event [Member]                      
Debt Instruments [Abstract]                      
Payment of debt         $ 200,000            
Industrial Injury Prevention [Member] | April 2020 [Member]                      
Debt Instruments [Abstract]                      
Acquisition cost payable in installments including accrued interest     $ 200,000                
Notes Payable [Member]                      
Debt Instruments [Abstract]                      
Average effective interest rate   5.00% 4.75%                
Notes Payable [Member] | Redeemable Non-Controlling Interest [Member]                      
Debt Instruments [Abstract]                      
Aggregate amount of notes payable $ 228,120                    
Number of principal installments | Installment 2                    
Notes Payable [Member] | March 2020 [Member] | Redeemable Non-Controlling Interest [Member]                      
Debt Instruments [Abstract]                      
Acquisition cost payable in installments including accrued interest $ 114,080                    
Notes Payable [Member] | March 2021 [Member] | Redeemable Non-Controlling Interest [Member]                      
Debt Instruments [Abstract]                      
Acquisition cost payable in installments including accrued interest $ 114,080                    
Notes Payable [Member] | 2018 Acquisition [Member]                      
Debt Instruments [Abstract]                      
Aggregate amount of notes payable   $ 400,000   $ 150,000              
Number of principal installments | Installment   2                  
Average effective interest rate       4.50%              
Notes Payable [Member] | Industrial Injury Prevention [Member]                      
Debt Instruments [Abstract]                      
Aggregate amount of notes payable     $ 400,000                
Number of principal installments | Installment     2                
Minimum [Member]                      
Debt Instruments [Abstract]                      
Spread on Libor variable rate                 1.25%    
Spread on variable rate                 0.10%    
Percentage of unused commitment fee                 0.25%    
Maximum [Member]                      
Debt Instruments [Abstract]                      
Spread on Libor variable rate                 2.00%    
Spread on variable rate                 1.00%    
Percentage of unused commitment fee                 0.30%    
Credit Facility [Member]                      
Debt Instruments [Abstract]                      
Revolving credit facility commitment                     $ 125,000,000
Revolving credit facility maturity date                 Nov. 30, 2021    
Remaining revolving credit outstanding                 $ 96,000,000    
Average effective interest rate                 4.40%    
Credit Agreement [Member]                      
Debt Instruments [Abstract]                      
Cash and noncash consideration with respect to acquisition after amendment               $ 50,000,000      
Credit Agreement [Member] | Maximum [Member]                      
Debt Instruments [Abstract]                      
Cash dividends after amendment           $ 20,000,000 $ 15,000,000 $ 10,000,000