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Income Taxes (Tables)
12 Months Ended
Dec. 31, 2016
Income Taxes [Abstract]  
Schedule of Components of Deferred Tax Assets Included in Consolidated Balance Sheets
Significant components of deferred tax assets included in the consolidated balance sheets at December 31, 2016 and 2015 were as follows (in thousands):

  
December 31, 2016
  
December 31, 2015
 
     
(as restated)
 
Deferred tax assets:
      
Compensation
 
$
1,914
  
$
1,830
 
Allowance for doubtful accounts
  
572
   
472
 
Lease obligations - closed clinics
  
57
   
50
 
Deferred tax assets
 
$
2,543
  
$
2,352
 
Deferred tax liabilities:
        
Depreciation and amortization
 
$
(17,896
)
 
$
(16,142
)
Other
  
(383
)
  
(1,718
)
Deferred tax liabilities
  
(18,279
)
  
(17,860
)
Net deferred tax liability
 
$
(15,736
)
 
$
(15,508
)
Schedule of 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 results of continuing operations for the years ended December 31, 2016, 2015 and 2014 were as follows (in thousands):

  
December 31, 2016
  
December 31, 2015
  
December 31, 2014
 
        
(as restated)
  
(as restated)
 
U. S. tax at statutory rate
 
$
11,351
   
35.0
%
 
$
11,991
   
35.0
%
 
$
11,252
   
35.0
%
State income taxes, net of federal benefit
  
945
   
2.9
%
  
1,337
   
3.9
%
  
1,474
   
4.6
%
Excess equity compensation deduction
  
(911
)
  
-2.8
%
  
-
   
0.0
%
  
-
   
0.0
%
Non-deductible expenses
  
495
   
1.5
%
  
319
   
0.9
%
  
292
   
0.9
%
  
$
11,880
   
36.6
%
 
$
13,647
   
39.8
%
 
$
13,018
   
40.5
%
Schedule of Significant Components of Provision for Income Taxes for Continuing Operations
Significant components of the provision for income taxes for continuing operations for the years ended December 31, 2016, 2015 and 2014 were as follows (in thousands):

  
December 31, 2016
  
December 31, 2015
  
December 31, 2014
 
     
(as restated)
  
(as restated)
 
Current:
         
Federal
 
$
7,620
  
$
6,502
  
$
6,972
 
State
  
1,281
   
1,192
   
940
 
Total current
  
8,901
   
7,694
   
7,912
 
Deferred:
            
Federal
  
2,548
   
5,302
   
4,224
 
State
  
431
   
651
   
882
 
Total deferred
  
2,979
   
5,953
   
5,106
 
Total income tax provision for continuing operations
 
$
11,880
  
$
13,647
  
$
13,018