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Valuation and Qualifying Accounts | 12 Months Ended
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Dec. 26, 2020
Valuation and Qualifying Accounts [Abstract] |
Schedule of Valuation and Qualifying Accounts Disclosure [Text Block] | Schedule II - Valuation and Qualifying Accounts: SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS WEIS MARKETS, INC. (dollars in thousands)
Col. A | Col. B | Col. C | Col. D | Col. E
|  | Additions |  |
| Balance at | Charged to | Charged to |  | Balance at
| Beginning | Costs and | Accounts | Deductions | End of
Description | of Period | Expenses | Describe | Describe (1) | Period
Fiscal Year ended December 26, 2020: |  |  |  |  |  |  |  |  |  |
Deducted from asset accounts: |  |  |  |  |  |  |  |  |  |
Allowance for uncollectible accounts | $ | 2,757 | $ | 1,556 | $ | --- | $ | 1,886 | $ | 2,427
Fiscal Year ended December 28, 2019: |  |  |  |  |  |  |  |  |  |
Deducted from asset accounts: |  |  |  |  |  |  |  |  |  |
Allowance for uncollectible accounts | $ | 2,090 | $ | 1,975 | $ | --- | $ | 1,308 | $ | 2,757
Fiscal Year ended December 29, 2018: |  |  |  |  |  |  |  |  |  |
Deducted from asset accounts: |  |  |  |  |  |  |  |  |  |
Allowance for uncollectible accounts | $ | 1,946 | $ | 1,144 | $ | --- | $ | 1,000 | $ | 2,090
(1) Deductions are uncollectible accounts written off, net of recoveries.

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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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