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Schedule II Valuation and Qualifying Accounts
12 Months Ended
Dec. 31, 2015
Valuation and Qualifying Accounts [Abstract]  
Schedule II Valuation and Qualifying Accounts
SCHEDULE II
VALUATION AND QUALIFYING ACCOUNTS
 
 
Balance at
Beginning
of Period
 
Charged to
Costs and
Expenses
 
Deductions/
Write-offs
(Recoveries)
 
Balance at
End of
Period
 
 
(In thousands)
Year ended December 31, 2015
 
 
 
 
 
 
 
 
Allowance for doubtful accounts
 
$
28

 
$
(6
)
 
$
7

 
$
15

Year ended December 31, 2014
 
 
 
 
 
 
 
 
Allowance for doubtful accounts
 
$
9

 
$
16

 
$
(3
)
 
$
28

Year ended December 31, 2013
 
 
 
 
 
 
 
 
Allowance for doubtful accounts
 
$
134

 
$
8

 
$
133

 
$
9