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NOTES PAYABLE AND CREDIT AGREEMENT (Tables)
 3 Months Ended
Mar. 31, 2015
NOTES PAYABLE AND CREDIT AGREEMENT [Abstract]  
Summary of Credit Agreement and Notes Payable
Amounts outstanding under the Credit Agreement and notes payable as of March 31, 2015 and December 31, 2014 consisted of the following (in thousands):

  
March 31, 2015
  
December 31, 2014
 
Credit Agreement average effective interest rate of 2.5% inclusive of unused fee
 
$
41,500
  
$
34,500
 
Various notes payable with $932 plus accrued interest due in the next year, interest accrues at 3.25% per annum
  
1,415
   
1,117
 
 
  
42,915
   
35,617
 
Less current portion
  
(932
)
  
(883
)
  
$
41,983
  
$
34,734
 
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 March 31, 2015 are as follows (in thousands):

During the twelve months ended March 31, 2016
 
$
932
 
During the twelve months ended March 31, 2017
  
483
 
During the twelve months ended March 31, 2018
  
-
 
During the twelve months ended March 31, 2019
  
41,500
 
Total
 
$
42,915