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Accounts Receivable, Net
 12 Months Ended
Dec. 31, 2015
Accounts Receivable Net [Abstract]  
Accounts Receivable, Net
NOTE 4 - ACCOUNTS RECEIVABLE, NET
Accounts receivable consisted of the following:
  
 
 
 
 
 
 
 
 
 
  
December 31,
 2015
 
  
December 31,
 2014
 
Accounts receivable
  
$
3,999
 
  
$
13,327
  
Less: Provision for doubtful receivables
  
 
—
 
  
 
(49
)
Accounts receivable, net
 
$
3,999
 
 
$
13,278
  
Charges to provisions for doubtful accounts are summarized as follows:
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Allowance for doubtful receivables
  
Balance
 at
beginning
 of period
 
  
Charges
 to costs
 and
 expenses
 
  
Amount
 utilized
 
  
Balance
 at end
 of
 period
 
Year ended December 31, 2015
 
$
(49
) 
 
$
— 
 
 
$
49
 
 
$
—
 
Year ended December 31, 2014
  
$
(613
) 
  
$
—  
  
  
$
564
 
  
$
(49
) 
Year ended December 31, 2013
  
$
(458
) 
  
$
(155
) 
  
$
—  
 
  
$
(613
)