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Valuation and Qualifying Accounts | 12 Months Ended
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Dec. 30, 2017
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) ﻿ ﻿
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﻿ 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 30, 2017: |  |  |  |  |  |  |  |  |  |
﻿Deducted from asset accounts: |  |  |  |  |  |  |  |  |  |
﻿Allowance for uncollectible accounts | $ | 1,455 | $ | 2,176 | $ | --- | $ | 1,685 | $ | 1,946
﻿ |  |  |  |  |  |  |  |  |  |
﻿Fiscal Year ended December 31, 2016: |  |  |  |  |  |  |  |  |  |
﻿Deducted from asset accounts: |  |  |  |  |  |  |  |  |  |
﻿Allowance for uncollectible accounts | $ | 1,967 | $ | 1,145 | $ | --- | $ | 1,657 | $ | 1,455
﻿ |  |  |  |  |  |  |  |  |  |
﻿Fiscal Year ended December 26, 2015: |  |  |  |  |  |  |  |  |  |
﻿Deducted from asset accounts: |  |  |  |  |  |  |  |  |  |
﻿Allowance for uncollectible accounts | $ | 1,578 | $ | 1,438 | $ | --- | $ | 1,049 | $ | 1,967
﻿ (1) Deductions are uncollectible accounts written off, net of recoveries.

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- Definition The entire disclosure for any allowance and reserve accounts (their beginning and ending balances, as well as a reconciliation by type of activity during the period). Alternatively, disclosure of the required information may be within the footnotes to the financial statements or a supplemental schedule to the financial statements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -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
Name: | us-gaap_ValuationAndQualifyingAccountsAbstract
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