Other Income (Detail Textuals)	3 Months Ended		9 Months Ended
	Oct. 31, 2015 USD ($)	Oct. 31, 2014 USD ($)	Oct. 31, 2015 USD ($)	Oct. 31, 2015 EUR (€)	Oct. 31, 2014 USD ($)	Oct. 31, 2015 EUR (€)	Jan. 31, 2015 USD ($)
Business Acquisition [Line Items]
Other income	$ 896,000	$ 11,950,000	$ 896,000		$ 11,950,000
Maximum contingent consideration		1,015,000			1,015,000		$ 973,000
Estimated outstanding contingent consideration gain in current period			(899,000)		(4,186,000)
Gain on repurchase of unsecured promissory notes					1,893,000
Vilebrequin
Business Acquisition [Line Items]
Other income	899,000	12,000,000	899,000		12,000,000
Maximum contingent consideration	27,900,000		27,900,000			€ 22,500,000
Estimated fair value of contingent consideration payable	$ 5,500,000		5,500,000
Estimated outstanding contingent consideration gain in current period			$ 899,000	€ 800,000
Gain on revised estimated contingent consideration payable		4,200,000			4,200,000
Compensation for termination of agreement		3,500,000			3,500,000
Proceeds from the sale of interest in joint venture		2,400,000			2,400,000
Gain on repurchase of unsecured promissory notes		$ 1,900,000			$ 1,900,000