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Income Taxes (Tables)
12 Months Ended
Dec. 31, 2020
Income Taxes [Abstract]  
Components of Deferred Tax Assets and Liabilities Included in Consolidated Balance Sheets

Significant components of deferred tax assets and liabilities included in the consolidated balance sheets at December 31, 2020 and 2019 were as follows (in thousands):

 
December 31, 2020
   
December 31, 2019
 
             
Deferred tax assets:
           
Compensation
 
$
1,865
   
$
1,964
 
Allowance for credit losses
   
396
     
514
 
Acquired net operating losses
   
558
     
840
 
Lease obligations - including closed clinics
   
23,819
     
21,445
 
Deferred tax assets
 
$
26,638
   
$
24,763
 
Deferred tax liabilities:
               
Depreciation and amortization
 
$
(12,650
)
 
$
(13,195
)
Operating lease right-of-use assets
   
(21,419
)
   
(21,416
)
Other
   
(348
)
   
(223
)
Deferred tax liabilities
   
(34,417
)
   
(34,834
)
Net deferred tax liability
 
$
(7,779
)
 
$
(10,071
)
Differences Between Federal Tax Rate and Company's Effective Tax Rate for Results of Continuing Operations

The differences between the federal tax rate and the Company’s effective tax rate for the years ended December 31, 2020, 2019 and 2018 were as follows (in thousands):

   
December 31, 2020
   
December 31, 2019
   
December 31, 2018
 
U. S. tax at statutory rate
 
$
10,125
 
21.0%
 
$
11,274
 
21.0%
 
$
9,710
 
21.0%
 
State income taxes, net of federal benefit
   
1,956
 
3.9%
   
2,059
 
3.8%
   
1,722
 
3.7%
 
Excess equity compensation deduction
   
(99)
 
0.0%
   
(871)
 
-1.6 %
   
(806)
 
-1.7 %
 
Non-deductible expenses
   
1,040
 
2.1%
   
1,185
 
2.2%
   
743
 
1.6%
 
   
$
13,022
 
27.0%
 
$
13,647
 
25.4%
 
$
11,369
 
24.6%
 
Significant Components of Provision for Income Taxes for Continuing Operations

Significant components of the provision for income taxes for the years ended December 31, 2020, 2019 and 2018 were as follows (in thousands):

 
December 31, 2020
   
December 31, 2019
   
December 31, 2018
 
Current:
                 
Federal
 
$
10,506
   
$
6,523
   
$
5,357
 
State
   
2,774
     
2,473
     
1,199
 
Total current
   
13,280
     
8,996
     
6,556
 
Deferred:
                       
Federal
   
(38
)
   
3,730
     
3,771
 
State
   
(220
)
   
921
     
1,042
 
Total deferred
   
(258
)
   
4,651
     
4,813
 
Total income tax provision
 
$
13,022
   
$
13,647
   
$
11,369