Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Cash

-URI http://asc.fasb.org/extlink&oid=6506951

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Cash Equivalents

-URI http://asc.fasb.org/extlink&oid=6507016

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 1

-Article 5

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-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

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-Subparagraph (SX 210.5-02.1)

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-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section 45

-Paragraph 1

-Subparagraph (a)

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-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 4

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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 2) (USD $)	12 Months Ended
	Jan. 02, 2015 subsidiary segment	Dec. 27, 2013	Dec. 28, 2012	Dec. 30, 2011
Cash, Cash Equivalents and Liquid Investments
Cash and cash equivalents	$ 20,371,000	$ 8,134,000	$ 10,006,000	$ 3,001,000
Segment Information
Number of wholly owned subsidiaries	6wldn_NumberOfWhollyOwnedSubsidiaries
Number of subsidiaries aggregated as one reporting segment	3
Number of reportable segments into which three of the six subsidiaries are aggregated	1
Number of subsidiaries each of which comprise separate reporting segments	3
Wells Fargo Stage Coach Sweep Investment Account
Cash, Cash Equivalents and Liquid Investments
Cash and cash equivalents		1,103,000
Money Market Funds
Cash, Cash Equivalents and Liquid Investments
Cash and cash equivalents		1,002,000
Wells Fargo Advantage Heritage Fund
Cash, Cash Equivalents and Liquid Investments
Cash and cash equivalents		48,000
Wells Fargo Collateral Investment Account
Cash, Cash Equivalents and Liquid Investments
Cash and cash equivalents		5,003,000
B M O Harris Bank Master Control Operating Account
Cash, Cash Equivalents and Liquid Investments
Cash and cash equivalents	20,317,000
Cash
Cash, Cash Equivalents and Liquid Investments
Cash and cash equivalents	$ 54,000	$ 978,000