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NOTES PAYABLE AND CREDIT AGREEMENT (Tables)
 9 Months Ended
Sep. 30, 2014
NOTES PAYABLE AND CREDIT AGREEMENT [Abstract]  
Summary of Credit Agreement and Notes Payable
Amounts outstanding under the Credit Agreement and notes payable as of September 30, 2014 and December 31, 2013 consisted of the following (in thousands):
 
  
September 30, 2014
  
December 31, 2013
 
Credit Agreement average effective interest rate of 2.3% at September 30, 2014 inclusive of unused fee
 $ 
46,500
  $ 
40,000
 
Various notes payable with $850 plus accrued interest due in the next year, interest accrues at 3.25% per annum at September 30, 2014
  
1,300
   
1,475
 
   
47,800
   
41,475
 
Less current portion
  
(850
)
  
(825
)
  $ 
46,950
  $ 
40,650
 
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 September 30, 2014 are as follows (in thousands):

  
September 30, 2014
 
During the twelve months ended September 30, 2015
 $ 
850
 
During the twelve months ended September 30, 2016
  
450
 
During the twelve months ended September 30, 2019
  
46,500
 
Total
 $ 
47,800