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Note 1 - Organization, Basis of Presentation, and Summary of Significant Accounting Policies (Details Textual)		1 Months Ended			3 Months Ended			5 Months Ended	6 Months Ended		12 Months Ended
	May 05, 2017 USD ($)	Jul. 31, 2018 USD ($)	Nov. 30, 2017 USD ($)	Jul. 31, 2017 USD ($)	Nov. 25, 2018 USD ($)	Aug. 26, 2018	Nov. 26, 2017 USD ($)	Nov. 22, 2017 USD ($)	Nov. 25, 2018 USD ($)	Nov. 26, 2017 USD ($)	May 28, 2017 USD ($)	May 27, 2018 USD ($)	Jul. 15, 2014
Number of Proprietary Platforms					2				2
Restricted Cash, Total					$ 325,000		$ 325,000		$ 325,000	$ 325,000	$ 325,000	$ 325,000
Debt Issuance Costs, Current, Net, Total					60,000				60,000			60,000
Debt Issuance Costs, Noncurrent, Net, Total					110,000				$ 110,000			140,000
Number of Operating Segments						3			3
Legal Actions Against Apio [Member]
Loss Contingency Accrual, Ending Balance					$ 0				$ 0			1,000,000
Unfair Labor Practice Claims [Member]
Litigation Settlement, Amount Awarded to Other Party											310,000
Discrimination and Wrongful Termination and Wage and Hour Claims [Member]
Litigation Settlement, Amount Awarded to Other Party	$ 6,000,000
Payments for Legal Settlements		$ 1,800,000	$ 1,800,000	$ 2,400,000				$ 4,200,000
Apio [Member] | Legal Actions Against Apio [Member]
Loss Contingency, Number of Plaintiffs									100
Apio [Member] | Unfair Labor Practice Claims [Member]
Litigation Settlement, Amount Awarded to Other Party											$ 155,000
Windset [Member]
Investment Ownership Percentage					26.90%				26.90%				26.90%
Pacific Harvest [Member] | Discrimination and Wrongful Termination and Wage and Hour Claims [Member]
Litigation Settlement, Amount to be Reimbursed								$ 2,100,000
Litigation Settlement Receivable Outstanding					$ 1,900,000				$ 1,900,000
Customer Relationships [Member] | Minimum [Member]
Finite-Lived Intangible Asset, Useful Life									11 years
Customer Relationships [Member] | Maximum [Member]
Finite-Lived Intangible Asset, Useful Life									13 years
Prepaid Expenses and Other Current Assets [Member]
Debt Issuance Costs, Line of Credit Arrangements, Net, Total					120,000				$ 120,000			120,000
Prepaid Expenses and Other Current Assets [Member] | Pacific Harvest [Member] | Discrimination and Wrongful Termination and Wage and Hour Claims [Member]
Litigation Settlement Receivable Outstanding					900,000				900,000
Other Assets [Member]
Debt Issuance Costs, Line of Credit Arrangements, Net, Total					218,000				218,000			278,000
Other Assets [Member] | Pacific Harvest [Member] | Discrimination and Wrongful Termination and Wage and Hour Claims [Member]
Litigation Settlement Receivable Outstanding					1,000,000				1,000,000
Windset [Member]
Accounts Receivable, Related Parties, Current					207,000				207,000			$ 334,000
Windset [Member] | Cost of Sales [Member]
Revenue from Related Parties					109,000		$ 91,000		244,000	$ 195,000
Related Party Costs					$ 0				$ 6,000

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