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Other Income (Detail Textuals)
 9 Months Ended 9 Months Ended 1 Months Ended
Oct. 31, 2014
USD ($)
Jan. 31, 2014
USD ($)
Oct. 31, 2013
USD ($)
Aug. 07, 2012
USD ($)
Aug. 07, 2012
EUR (€)
Oct. 31, 2014
Vilebrequin International SA
USD ($)
Oct. 31, 2014
Vilebrequin International SA
EUR (€)
Aug. 07, 2012
Vilebrequin International SA
USD ($)
Oct. 31, 2014
Unsecured promissory notes
USD ($)
Sep. 30, 2014
G-III Leather Fashion, Inc.
USD ($)
Oct. 31, 2014
G-III Foreign Holding
USD ($)
Oct. 31, 2014
G-III Foreign Holding
EUR (€)
Oct. 31, 2014
G-III Foreign Holding
Unsecured promissory notes
EUR (€)
Other Non Recurring Income [Line Items]                          
Percentage of interest sold in joint venture                   51.00%      
Gain on sale of interest in the joint venture $ 2,365,000                 $ 2,400,000      
Consideration paid for termination                   3,500,000      
Unsecured promissory notes                 15,000,000       15,000,000
Stated interest rate per annum                         5.00%
Discounted purchase price of notes                         13,500,000
Rate of discount on outstanding principal amounts                         10.00%
Gain due to purchase and capital contribution                     1,900,000 1,500,000  
Contingent consideration 1,015,000 5,550,000 5,936,000 27,900,000 22,500,000 1,000,000 800,000 5,500,000          
Gain due to revision of estimate of contingent consideration $ 4,186,000         $ 4,200,000 € 3,200,000