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Schedule II - Valuation and Qualifying Accounts | 12 Months Ended
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Dec. 28, 2019
Valuation And Qualifying Accounts [Abstract] |
Schedule II - Valuation and Qualifying Accounts |
Description |  | 2019 |  |  | 2018 |  |  | 2017 |
Allowance for doubtful accounts |  |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of period |  | $ | 699 |  |  | $ | 714 |  |  | $ | 884 |
Additions charged to costs and expenses |  |  | 1,391 |  |  |  | 815 |  |  |  | 915 |
Deductions from reserves |  |  | (1,192 | ) |  |  | (830 | ) |  |  | (1,085 | )
Balance at end of period |  | $ | 898 |  |  | $ | 699 |  |  | $ | 714 |

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- Definition The entire disclosure for valuation and qualifying accounts and reserves. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 12 -Subsection 09 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 + Details
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- References No definition available. + Details
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