NATURE OF OPERATIONS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - New and Recently Issued Accounting Standards (Details)	9 Months Ended
Feb. 23, 2020
Accounting Standards Update 2016-02
New and Recently Issued Accounting Standards
Change in Accounting Principle, Accounting Standards Update, Adopted	true
Change in Accounting Principle, Accounting Standards Update, Adoption Date	May 27, 2019
Change in Accounting Principle, Accounting Standards Update, Early Adoption	false
Change in Accounting Principle, Accounting Standards Update, Transition Option Elected	Modified Retrospective
New Accounting Pronouncement or Change in Accounting Principle, Prior Period Not Restated	true
Accounting Standards Update 2016-13
New and Recently Issued Accounting Standards
Change in Accounting Principle, Accounting Standards Update, Adopted	false
Change in Accounting Principle, Accounting Standards Update, Early Adoption	false
Accounting Standards Update 2018-14
New and Recently Issued Accounting Standards
Change in Accounting Principle, Accounting Standards Update, Adopted	false
Change in Accounting Principle, Accounting Standards Update, Early Adoption	false

Indicates (true false) whether accounting standards update was adopted.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22499-107794

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Date accounting standards update was adopted, in CCYY-MM-DD format.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
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+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 1
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- Definition

Indicates (true false) whether prior period was not restated when there is change in accounting principle or adoption of new accounting pronouncement. Excludes correction of error.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
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-Section 50
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=117331771&loc=SL75117418-158277

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