Condensed Consolidated Statements of Operations and Comprehensive Income (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jul. 31, 2012	Jul. 31, 2011	Jul. 31, 2012	Jul. 31, 2011
Condensed Consolidated Statements of Operations and Comprehensive Income [Abstract]
Net sales	$ 251,479	$ 229,975	$ 480,928	$ 426,846
Cost of goods sold	176,636	164,404	337,395	301,820
Gross profit	74,843	65,571	143,533	125,026
Selling, general and administrative expenses	69,454	59,826	136,068	117,751
Depreciation and amortization	2,100	1,852	4,153	3,376
Operating profit	3,289	3,893	3,312	3,899
Equity loss in joint venture	146	376	433	475
Interest and financing charges, net	1,034	952	2,138	1,711
Income before income taxes	2,109	2,565	741	1,713
Income tax expense	802	1,000	282	668
Net income	1,307	1,565	459	1,045
Add: Loss attributable to noncontrolling interest	(55)		(55)
Income attributable to G-III	1,362	1,565	514	1,045
Basic:
Net income per common share	$ 0.07	$ 0.08	$ 0.03	$ 0.05
Weighted average number of shares outstanding	19,995	19,848	19,928	19,784
Diluted:
Net income per common share	$ 0.07	$ 0.08	$ 0.03	$ 0.05
Weighted average number of shares outstanding	20,331	20,253	20,334	20,221
Net Income	1,362	1,565	514	1,045
Other comprehensive loss attributable to G III:
Foreign currency translation adjustments	(57)	(12)	(55)	(34)
Other comprehensive loss	(57)	(12)	(55)	(34)
Comprehensive income	$ 1,305	$ 1,553	$ 459	$ 1,011