Common and Preferred Stock - Additional Information (Details) - USD ($)	Jan. 30, 2016	Jan. 31, 2015	Sep. 30, 2014	Jul. 31, 2014
Class Of Stock [Line Items]
Repurchase of the Company's outstanding common stock	$ 0			$ 10,000,000
Preferred stock, shares authorized	1,656,381	1,656,381	1,656,381
Preferred stock, par value	$ 0.01	$ 0.01	$ 0.01
Series B junior participating preferred stock, shares issued	0	0	0
Series B junior participating preferred stock, shares outstanding	0	0	0
Series B junior participating preferred stock
Class Of Stock [Line Items]
Preferred stock, shares authorized	300,000	300,000	300,000
Preferred stock, par value	$ 0.01	$ 0.01	$ 0.01
Series B junior participating preferred stock, shares outstanding	0	0	0