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Accounts Receivable, net
 12 Months Ended
Dec. 31, 2014
Receivables [Abstract]  
Accounts Receivable, net
Accounts Receivable, net
Accounts receivable, net, consists of the following:
 
 
December 31,
 
2014
 
2013
 
(in thousands)
Accounts receivable, gross
$
34,790

 
$
22,048

Less allowance for doubtful accounts
(1,172
)
 
(109
)
Total accounts receivable, net
$
33,618

 
$
21,939



The allowance for doubtful accounts consists of the following:
 
 
Years Ended December 31,
 
2014
 
2013
 
2012
 
(in thousands)
Beginning balance
$
109

 
$
655

 
$
646

Provision
1,064

 
48

 
90

Write-offs
(2
)
 
(598
)
 
(87
)
Recoveries
1

 
4

 
6

Ending balance
$
1,172

 
$
109

 
$
655