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NOTES PAYABLE AND AMENDED CREDIT AGREEMENT (Tables)
 3 Months Ended
Mar. 31, 2017
NOTES PAYABLE AND AMENDED CREDIT AGREEMENT [Abstract]  
Summary of Credit Agreement and Notes Payable
Amounts outstanding under the Amended Credit Agreement and notes payable as of March 31, 2017 and December 31, 2016 consisted of the following (in thousands):

  
March 31, 2017
  
December 31, 2016
 
Credit Agreement average effective interest rate of 2.6% inclusive of unused fee
 
$
58,000
  
$
46,000
 
Various notes payable with $1,219 plus accrued interest due in the next year interest accrues in the range of 3.25% through 3.75% per annum
  
6,021
   
5,823
 
   
64,021
   
51,823
 
Less current portion
  
(1,219
)
  
(1,227
)
Long term portion
 
$
62,802
  
$
50,596
 
Summary of Aggregate Annual Payments of Principal Required to Revolving Credit Facility
Aggregate annual payments of principal required pursuant to the Amended Credit Agreement and the above notes payable subsequent to March 31, 2017 are as follows (in thousands):

During the twelve months ended March 31, 2018
 
$
1,219
 
During the twelve months ended March 31, 2019
  
60,956
 
During the twelve months ended March 31, 2020
  
1,846
 
  
$
64,021