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2. Recently Adopted Accounting Policies (Details) - USD ($)	3 Months Ended			6 Months Ended		12 Months Ended
	Jul. 29, 2018	Apr. 29, 2018	Jul. 30, 2017	Jul. 29, 2018	Jul. 30, 2017	Jan. 28, 2018
Accounting Changes and Error Corrections [Abstract]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent		21.00%				35.00%
Reclassification from AOCI, Current Period, Tax	$ 0	$ 111,000	$ 0	$ 111,000	$ 0
Cumulative Effect on Retained Earnings, Net of Tax		210,000
Contract with Customer, Liability		$ 5,000,000

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Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable.

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