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    <Log type="Info">Element us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity had a mix of decimals attribute values: -5 0.</Log>
    <Log type="Info">Columns in Cash Flows statement 'CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)' have maximum duration 370 days and at least 36 values. Shorter duration columns must have at least one fourth (9) as many values. Column '12/29/2012 - 3/29/2013' is shorter (90 days) and has only 2 values, so it is being removed.</Log>
    <Log type="Info">Columns in Cash Flows statement 'CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)' have maximum duration 370 days and at least 36 values. Shorter duration columns must have at least one fourth (9) as many values. Column '3/30/2013 - 6/28/2013' is shorter (90 days) and has only 1 values, so it is being removed.</Log>
    <Log type="Info">Columns in Cash Flows statement 'CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)' have maximum duration 370 days and at least 36 values. Shorter duration columns must have at least one fourth (9) as many values. Column '6/29/2013 - 9/27/2013' is shorter (90 days) and has only 1 values, so it is being removed.</Log>
    <Log type="Info">Columns in Cash Flows statement 'CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)' have maximum duration 370 days and at least 36 values. Shorter duration columns must have at least one fourth (9) as many values. Column '9/28/2013 - 12/27/2013' is shorter (90 days) and has only 2 values, so it is being removed.</Log>
    <Log type="Info">Columns in Cash Flows statement 'CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)' have maximum duration 370 days and at least 36 values. Shorter duration columns must have at least one fourth (9) as many values. Column '12/28/2013 - 3/28/2014' is shorter (90 days) and has only 2 values, so it is being removed.</Log>
    <Log type="Info">Columns in Cash Flows statement 'CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)' have maximum duration 370 days and at least 36 values. Shorter duration columns must have at least one fourth (9) as many values. Column '3/29/2014 - 6/27/2014' is shorter (90 days) and has only 1 values, so it is being removed.</Log>
    <Log type="Info">Columns in Cash Flows statement 'CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)' have maximum duration 370 days and at least 36 values. Shorter duration columns must have at least one fourth (9) as many values. Column '6/28/2014 - 9/26/2014' is shorter (90 days) and has only 1 values, so it is being removed.</Log>
    <Log type="Info">Columns in Cash Flows statement 'CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)' have maximum duration 370 days and at least 36 values. Shorter duration columns must have at least one fourth (9) as many values. Column '9/27/2014 - 1/2/2015' is shorter (97 days) and has only 2 values, so it is being removed.</Log>
    <Log type="Info">'Monetary' elements on report '41102 - Disclosure - INCOME TAXES (Details 2)' had a mix of different decimal attribute values.</Log>
    <Log type="Info">'Monetary' elements on report '41501 - Disclosure - SUBSEQUENT EVENTS (Details)' had a mix of different decimal attribute values.</Log>
    <Log type="Info">Process Flow-Through: 00100 - Statement - CONSOLIDATED BALANCE SHEETS</Log>
    <Log type="Info">	Process Flow-Through: Removing column 'Dec. 28, 2012'</Log>
    <Log type="Info">	Process Flow-Through: Removing column 'Dec. 30, 2011'</Log>
    <Log type="Info">Process Flow-Through: 00105 - Statement - CONSOLIDATED BALANCE SHEETS (Parenthetical)</Log>
    <Log type="Info">	Process Flow-Through: Removing column 'Jan. 15, 2015'</Log>
    <Log type="Info">	Process Flow-Through: Removing column 'Dec. 28, 2012'</Log>
    <Log type="Info">	Process Flow-Through: Removing column 'Dec. 30, 2011'</Log>
    <Log type="Info">Process Flow-Through: 00200 - Statement - CONSOLIDATED STATEMENTS OF OPERATIONS</Log>
    <Log type="Info">	Process Flow-Through: Removing column '3 Months Ended
Jan. 02, 2015'</Log>
    <Log type="Info">	Process Flow-Through: Removing column '3 Months Ended
Sep. 26, 2014'</Log>
    <Log type="Info">	Process Flow-Through: Removing column '3 Months Ended
Jun. 27, 2014'</Log>
    <Log type="Info">	Process Flow-Through: Removing column '3 Months Ended
Mar. 28, 2014'</Log>
    <Log type="Info">	Process Flow-Through: Removing column '3 Months Ended
Dec. 27, 2013'</Log>
    <Log type="Info">	Process Flow-Through: Removing column '3 Months Ended
Sep. 27, 2013'</Log>
    <Log type="Info">	Process Flow-Through: Removing column '3 Months Ended
Jun. 28, 2013'</Log>
    <Log type="Info">	Process Flow-Through: Removing column '3 Months Ended
Mar. 29, 2013'</Log>
    <Log type="Info">Process Flow-Through: 00400 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS</Log>
  </Logs>
  <InputFiles>
    <File>wldn-20150102.xml</File>
    <File>wldn-20150102.xsd</File>
    <File>wldn-20150102_cal.xml</File>
    <File>wldn-20150102_def.xml</File>
    <File>wldn-20150102_lab.xml</File>
    <File>wldn-20150102_pre.xml</File>
  </InputFiles>
  <SupplementalFiles />
  <BaseTaxonomies />
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
