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Fair Value Measurement (Tables)
 6 Months Ended
Jun. 30, 2015
Fair Value Measurement [Abstract]  
Schedule of assets and liabilities measured at fair value on a recurring basis

 

     Fair Value Measurements at Reporting Date Using 
  June 30,
2015		  Quoted Prices 
in Active 
Markets for 
Identical Assets/ 
Liabilities
(Level 1)		  Significant 
Other 
Observable 
Inputs
(Level 2)		  Significant 
Unobservable 
Inputs
(Level 3)		 
Assets:            
Cash equivalents:            
Money market funds $10,082  $10,082  $—  $— 
Total assets at fair value on a recurring basis $10,082  $10,082  $—  $— 
Liabilities:                
Other liabilities:                
Deferred payments $2,815  $—  $—  $2,815 
Interest rate swap  238   —   238   — 
Total liabilities at fair value on a recurring basis $3,053  $—  $238  $2,815 

  

 

     Fair Value Measurements at Reporting Date Using 
  December 31, 2014  Quoted Prices
 in Active 
Markets for 
Identical Assets/ 
Liabilities
(Level 1)		  Significant 
Other 
Observable 
Inputs
(Level 2)		  Significant 
Unobservable 
Inputs
(Level 3)		 
Assets:            
Cash equivalents:            
Money market funds $8,275  $8,275  $—  $— 
Interest rate swap  143   —   143   — 
Total assets at fair value on a recurring basis $8,418  $8,275  $143  $— 
Liabilities:                
Other liabilities:                
Deferred payments $2,398  $—  $—  $2,398 
Total liabilities at fair value on a recurring basis $2,398  $—  $—  $2,398 

 
Schedule of changes in fair value of level 3 liability
  

Deferred

Payments

 
Balance at December 31, 2014 $2,398 
Amounts earned  (350)
Adjustments to fair value  767 
Transfers in or out of Level 3  — 
Balance at June 30, 2015 $2,815