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Schedule II - VALUATION AND QUALIFYING ACCOUNTS
 12 Months Ended
Dec. 31, 2016
Valuation And Qualifying Accounts [Abstract]  
Schedule II - VALUATION AND QUALIFYING ACCOUNTS

NANOMETRICS INCORPORATED

VALUATION AND QUALIFYING ACCOUNTS

Our allowance for doubtful accounts receivable consists of the following (in thousands):

 

Year Ended

 

Balance at

beginning

of period

 

 

Additions to Allowance

 

 

Charges Utilized/Write-offs

 

 

Balance

at end

of period

 

December 31, 2016

 

$

150

 

 

$

—

 

 

$

(77

)

 

$

73

 

December 26, 2015

 

$

253

 

 

$

10

 

 

$

(113

)

 

$

150

 

December 27, 2014

 

$

293

 

 

$

—

 

 

$

(40

)

 

$

253

 

 

Our valuation allowance for deferred tax assets consists of the following (in thousands):

 

Year Ended

 

Balance at

beginning

of period

 

 

Additions to Allowance

 

 

Charges Utilized/Write-offs

 

 

Balance

at end

of period

 

December 31, 2016

 

$

36,786

 

 

$

1,643

 

 

$

(27,449

)

 

$

10,980

 

December 26, 2015

 

$

35,835

 

 

$

951

 

 

$

—

 

 

$

36,786

 

December 27, 2014

 

$

11,665

 

 

$

24,170

 

 

$

—

 

 

$

35,835