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Segment Information
3 Months Ended
Mar. 31, 2017
Segment Information [Abstract]  
Segment Information
(5) Segment Information:
The Company has one reportable business segment in its operations: Property and Casualty Insurance.  The property and casualty insurance segment provides multiple line insurance coverage primarily to fleet transportation companies as well as to independent contractors who contract with fleet transportation companies.  In addition, the Company provides workers' compensation coverage to small businesses.  Through this segment, the Company offers a range of products and services, the most significant being commercial auto and workers' compensation.

The following table summarizes segment revenues for the three months ended March 31, 2017 and 2016:

  
Three Months Ended
 
  
March 31
 
  
2017
  
2016
 
       
Revenues:
      
Net premiums earned
 
$
73,974
  
$
66,909
 
Net investment income
  
3,692
   
3,440
 
Net realized gains on investments
  
6,294
   
9,012
 
Other
  
981
   
1,364
 
Total revenues
 
$
84,941
  
$
80,725