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RESTRUCTURING ACTIVITIES AND ASSET IMPAIRMENTS (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended		12 Months Ended
	Jul. 29, 2017	Apr. 29, 2017	Apr. 30, 2016	Apr. 29, 2017	Apr. 30, 2016	Jul. 29, 2017	Jul. 30, 2016
Restructuring Costs [Abstract]
Restructuring and asset impairment expenses		$ 3,946	$ 0	$ 3,946	$ 4,794
Restructuring Cost Liability as of April 29, 2017
Restructuring Charges							$ 4,865
Payments for Restructuring				(4,847)
Restructuring Reserve		18		18
2017 Cost Saving and Efficiency Initiatives [Member]
Restructuring Cost Liability as of April 29, 2017
Restructuring Charges		3,946
Payments for Restructuring				(824)
Restructuring Reserve		3,122		3,122
Employee Severance [Member] | Cost Saving Measures [Member]
Restructuring Cost Liability as of April 29, 2017
Restructuring Charges							3,443
Payments for Restructuring				(3,429)
Restructuring Reserve		14		14
Employee Severance [Member] | 2017 Cost Saving and Efficiency Initiatives [Member]
Restructuring Cost Liability as of April 29, 2017
Restructuring Charges		3,688
Payments for Restructuring		(795)
Restructuring Reserve		2,893		2,893
Employee Severance [Member] | Earth Origins Market [Member]
Restructuring Cost Liability as of April 29, 2017
Restructuring Charges							41
Payments for Restructuring				(37)
Restructuring Reserve		4		4
Facility Closing [Member] | Cost Saving Measures [Member]
Restructuring Cost Liability as of April 29, 2017
Restructuring Charges							368
Payments for Restructuring				(368)
Restructuring Reserve		0		0
Facility Closing [Member] | 2017 Cost Saving and Efficiency Initiatives [Member]
Restructuring Cost Liability as of April 29, 2017
Restructuring Charges		258
Payments for Restructuring		(29)
Restructuring Reserve		229		229
Facility Closing [Member] | Earth Origins Market [Member]
Restructuring Cost Liability as of April 29, 2017
Restructuring Charges							443
Payments for Restructuring				(443)
Restructuring Reserve		0		0
Operational Transfer Costs [Member] | Cost Saving Measures [Member]
Restructuring Cost Liability as of April 29, 2017
Restructuring Charges							$ 570
Payments for Restructuring				(570)
Restructuring Reserve		$ 0		$ 0
Scenario, Forecast [Member] | Maximum | 2017 Cost Saving and Efficiency Initiatives [Member]
Restructuring Cost Liability as of April 29, 2017
Restructuring Charges	$ 4,000					$ 7,900
Scenario, Forecast [Member] | Minimum | 2017 Cost Saving and Efficiency Initiatives [Member]
Restructuring Cost Liability as of April 29, 2017
Restructuring Charges	$ 3,000					$ 6,900

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Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)(2)
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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

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