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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) - USD ($) $ in Thousands	6 Months Ended		12 Months Ended
	Jul. 31, 2019	Jul. 31, 2018	Jan. 31, 2019
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) [Line Items]
Income Taxes Paid	$ 0	$ 500
Proceeds from Income Tax Refunds	0	0
Unrecognized Tax Benefits	8,800		$ 8,800
Income Tax Examination, Penalties and Interest Accrued	500		400
Inventory Write-down	$ 1,200		$ 0
Property, Plant and Equipment, Depreciation Methods	Depreciation iscomputed using the straight-line method.
Asset Impairment Charges	$ 0	$ 0
	$ 20,918
Minimum [Member] | Building and Building Improvements [Member]
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) [Line Items]
Property, Plant and Equipment, Estimated Useful Lives	5
Minimum [Member] | Fixtures And Equipment [Member]
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) [Line Items]
Property, Plant and Equipment, Estimated Useful Lives	2
Maximum [Member] | Building and Building Improvements [Member]
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) [Line Items]
Property, Plant and Equipment, Estimated Useful Lives	40 years
Maximum [Member] | Fixtures And Equipment [Member]
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) [Line Items]
Property, Plant and Equipment, Estimated Useful Lives	20years
Provision for Income Taxes [Member]
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) [Line Items]
Unrecognized Tax Benefits	$ 8,300
Cost of Sales [Member]
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) [Line Items]
Maximum Percentage of Equity Ownership Interest Which May be Considered for Equity Method of Accounting	20.00%
Accounting Standards Update 2018-13 [Member]
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Description	In August 2018, the Financial AccountingStandards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2018-13, “Changes to DisclosureRequirements for Fair Value Measurements”, which improves the effectiveness of recurring and non-recurring fair valuemeasurements disclosures. This standard removes, modifies and adds certain disclosure requirements and is effective for the Companybeginning February 1, 2020. The Company has not determined the effect of this standard on its consolidated financial statementsand related disclosures.

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Disclosure related to a new accounting pronouncement or a change in accounting principle, including the nature and reason for the change and the effect of the change on prior periods and the current period.

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