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Accounts Receivable
 12 Months Ended
Dec. 31, 2015
Accounts Receivable, Net, Current [Abstract]  
Accounts Receivable
Accounts Receivable
 
Accounts receivable consisted of the following (in thousands):
 
 
December 31,
2015
 
December 31,
2014
Total receivables
$
15,421

 
$
9,281

Allowance for doubtful accounts and returns
(554
)
 
(162
)
Accounts receivable, net
$
14,867

 
$
9,119


 
Write-offs related to accounts receivable were approximately $88,000 for the year ended December 31, 2015, $70,000 for the year ended December 31, 2014 and $11,000 for year ended December 31, 2013.

Summary of allowance for doubtful accounts and returns activity was as follows:

 
December 31, 2015
 
December 31, 2014
Beginning balance
(162
)
 
(234
)
Provision for bad debts on trade receivables
(359
)
 
(6
)
Other allowances
(121
)
 
8

Accounts receivable write offs
88

 
70

Ending balance
$
(554
)
 
$
(162
)