CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Apr. 30, 2014	Apr. 30, 2013
Income Statement [Abstract]
Net sales	$ 366,192	$ 272,615
Cost of goods sold	236,015	180,223
Gross profit	130,177	92,392
Selling, general and administrative expenses	122,441	85,828
Depreciation and amortization	4,227	3,121
Operating profit	3,509	3,443
Interest and financing charges, net	1,752	1,777
Income before income taxes	1,757	1,666
Income tax expense	668	633
Net income	1,089	1,033
Add: Loss attributable to noncontrolling interest	201	85
Income attributable to G-III	1,290	1,118
Basic:
Net income per common share (in dollars per share)	$ 0.06	$ 0.06
Weighted average number of shares outstanding (in shares)	20,488	20,161
Diluted:
Net income per common share (in dollars per share)	$ 0.06	$ 0.05
Weighted average number of shares outstanding (in shares)	21,022	20,402
Net income attributable to G-III	1,290	1,118
Other comprehensive loss:
Foreign currency translation adjustments	(36)	(2,379)
Other comprehensive loss	(36)	(2,379)
Comprehensive income (loss)	$ 1,254	$ (1,261)