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FAIR VALUE MEASUREMENT (Tables)
 12 Months Ended
Dec. 31, 2015
Fair Value Disclosures [Abstract]  
Schedule of Assets and Liabilities Measured at Fair Value on a Recurring Basis
Assets and liabilities measured at fair value on a recurring basis are shown in the table below by their corresponding balance sheet captions and consisted of the following types of instruments as of December 31 (in thousands):

 
2015
 
2014
 
Fair Value Measurements at
Reporting Date Using
 
Fair Value Measurements at
Reporting Date Using
 
(Level 1)
 
Total
 
(Level 1)
 
Total
Assets measured at fair value:
 
 
 
 
 
 
 
Cash and cash equivalents: (1)
 
 
 
 
 
 
 
     Money market funds
$
15,011

 
$
15,011

 
$
7,007

 
$
7,007

Restricted cash:
 

 
 

 
 

 
 

     Money market funds
1,808

 
1,808

 
1,806

 
1,806

Total assets measured at fair value
$
16,819

 
$
16,819

 
$
8,813

 
$
8,813



(1) Excludes $18.4 million and $15.8 million in cash held in our bank accounts at December 31, 2015 and December 31, 2014, respectively.