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Valuation and Qualifying Accounts
 12 Months Ended
Dec. 26, 2020
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]  
Valuation and Qualifying Accounts

19. Valuation and Qualifying Accounts

 

The following table sets forth activity in Kopin’s allowance for doubtful accounts:

 

Fiscal year ended:  Balance at
Beginning
of Year		   Additions
Charged
to
Income		   Deductions
from
Reserve		   Balance at
End of
Year		 
December 29, 2018  $149,000   $268,000   $(113,000)  $304,000 
December 28 2019   304,000    951,000    (317,000)   938,000 
December 26, 2020  $938,000   $42,000   $(805,000)  $175,000