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Note 1 - Organization, Basis of Presentation and Summary of Significant Accounting Policies - Reconciliation of Cash, Cash Equivalents (Details) - USD ($)	May 27, 2018	May 28, 2017	May 29, 2016	May 31, 2015
Cash and cash equivalents	$ 2,899,000	$ 5,998,000	$ 9,968,000
Cash, discontinued operations	(8,000)	(589,000)	(74,000)
Cash and cash equivalents presented on Statements of Cash Flows	$ 2,891,000	$ 5,409,000	$ 9,894,000	$ 14,127,000

X

- Definition

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.

+ References

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For the entity and the disposal group, cash includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Entity may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Compensating balance arrangements that do not legally restrict the withdrawal or usage of cash amounts may be reported as Cash and Cash Equivalents, while legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or company statements of intention with regard to particular deposits are not generally reported as cash and cash equivalents.

+ References

No definition available.

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- Definition

Amount classified as cash and cash equivalents attributable to disposal group held for sale or disposed of.

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