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Trade Receivables
 12 Months Ended
Dec. 31, 2015
Receivables [Abstract]  
Trade Receivables
TRADE RECEIVABLES

Trade receivables, net, consisted of the following (in thousands):
 
December 31,
 
2015
 
2014
Trade receivables
$
46,073

 
$
26,368

Allowance for doubtful accounts
(918
)
 
(108
)
 
$
45,155

 
$
26,260



Changes in our allowance for doubtful trade receivables were as follows (in thousands):
 
2015
 
2014
 
2013
Balance, January 1
$
108

 
$
53

 
$
93

Charges to bad debt expense
786

 
104

 
588

Recoveries (write-offs), net
24

 
(49
)
 
(628
)
Balance, December 31
$
918

 
$
108

 
$
53