Notes Payable (Tables)
 12 Months Ended
Dec. 31, 2016
Notes Payable [Abstract]  
Summary of Credit Agreement and Notes Payable
Notes payable as of December 31, 2016 and 2015 consisted of the following (dollars in thousands):

  
December 31, 2016
  
December 31, 2015
 
Credit Agreement average effective interest rate of 2.5% inclusive of unused fee
 
$
46,000
  
$
44,000
 
Various notes payable with $1,227 plus accrued interest due in the next year interest accrues in the range of 3.25% through 3.5% per annum
  
5,823
   
5,110
 
   
51,823
   
49,110
 
Less current portion
  
(1,227
)
  
(775
)
Long term portion
 
$
50,596
  
$
48,335
 
Summary of Aggregate Annual Payments of Principal Required to Revolving Credit Facility
Aggregate annual payments of principal required pursuant to the Credit Agreement and the above notes payable subsequent to December 31, 2016 are as follows (in thousands):

During the twelve months ended December 31, 2017
 
$
1,227
 
During the twelve months ended December 31, 2018
  
48,750
 
During the twelve months ended December 31, 2019
  
1,846
 
  
$
51,823