Acquisitions (Details Textual) £ in Millions			7 Months Ended	12 Months Ended
	Jul. 03, 2017 USD ($)	Jul. 03, 2017 GBP (£)	Jan. 31, 2018 USD ($)	Jan. 31, 2018 USD ($)	Jan. 31, 2017 USD ($)
Business Acquisition [Line Items]
Business acquisition, net of cash acquired				$ 78,991,000
Goodwill			$ 60,269,000	60,269,000	$ 0
Impairment charge of goodwill				0
Trade Name
Business Acquisition [Line Items]
Business combination recognized intangible assets	$ 12,800,000
Intangible asset amortization period	10 years	10 years
Customer Relationships
Business Acquisition [Line Items]
Business combination recognized intangible assets	$ 8,600,000
Intangible asset amortization period	6 years	6 years
Wholesale
Business Acquisition [Line Items]
Expenses primarily related to transaction costs and adjustments in acquisition accounting				6,800,000
United States | Wholesale
Business Acquisition [Line Items]
Expenses primarily related to transaction costs and adjustments in acquisition accounting				400,000
International | Wholesale
Business Acquisition [Line Items]
Expenses primarily related to transaction costs and adjustments in acquisition accounting				6,400,000
JLB Brands Ltd
Business Acquisition [Line Items]
Inventories step-up adjustment	$ 800,000
Inventories step-up adjustment expensed over sell-through cycle	3 months	3 months
Business combination recognized intangible assets	$ 21,415,000
Goodwill	55,322,000		60,269,000	60,269,000
Net sales since acquisition date			17,800,000
Operating income since acquisition date			5,300,000
Estimated amortization expense, fiscal year 2019			2,900,000	2,900,000
Estimated amortization expense, fiscal year 2020			2,900,000	2,900,000
Estimated amortization expense, fiscal year 2021			2,900,000	2,900,000
Estimated amortization expense, fiscal year 2022			2,900,000	2,900,000
Estimated amortization expense, fiscal year 2023			2,900,000	2,900,000
Estimated amortization expense, total over the next five years thereafter			$ 6,600,000	$ 6,600,000
Olivia Burton Brand | JLB Brands Ltd
Business Acquisition [Line Items]
Business acquisition, purchase price in cash subject to working capital and other closing adjustments	78,200,000	£ 60.0
Business acquisition, net of cash acquired	79,000,000	60.7
Business acquisition, cash acquired	5,900,000	£ 4.5
Business acquisition, debt assumed	$ 0