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Consolidated Valuation And Qualifying Accounts
 12 Months Ended
Dec. 31, 2017
Valuation and Qualifying Accounts [Abstract]  
Consolidated Valuation And Qualifying Accounts
DUCOMMUN INCORPORATED AND SUBSIDIARIES
CONSOLIDATED VALUATION AND QUALIFYING ACCOUNTS
YEARS ENDED DECEMBER 31, 2017, 2016, AND 2015
(in thousands)
SCHEDULE II
 
Description
 
Balance at
Beginning
of Period
 
Charged to
Costs and
Expenses (1)
 
Deductions/(Recoveries)
 
Balance at End
of Period
2017
 
 
 
 
 
 
 
 
Allowance for Doubtful Accounts
 
$
495

 
$
334

 
$
(39
)
 
$
868

Valuation Allowance on Deferred Tax Assets
 
6,607

 
2,406

 
—

 
9,013

2016
 
 
 
 
 
 
 
 
Allowance for Doubtful Accounts
 
$
359

 
$
233

 
$
97

 
$
495

Valuation Allowance on Deferred Tax Assets
 
7,477

 
(870
)
 
—

 
6,607

2015
 
 
 
 
 
 
 
 
Allowance for Doubtful Accounts (1)
 
$
252

 
$
235

 
$
128

 
$
359

Valuation Allowance on Deferred Tax Assets
 
6,882

 
595

 
—

 
7,477


 
(1)
Included amount that was part of assets held for sale.