Accrued Expenses and Other Current Liabilities (Tables)
9 Months Ended
Sep. 30, 2013
Payables and Accruals [Abstract]  
Schedule of accrued expenses and other current liabilities
Accrued expenses and other current liabilities consisted of the following (in thousands):
 
December 31,
2012
 
September 30,
2013
Accrued compensation
$
4,265

 
$
3,160

Accrued content fees
555

 
881

Accrued property and equipment expenditures
132

 
593

Accrued business acquisition consideration
500

 

Unearned revenue on contracts
297

 
437

Other
1,579

 
972

Total
$
7,328

 
$
6,043