Equity (Details Textual) (USD $)	6 Months Ended	12 Months Ended		3 Months Ended	6 Months Ended	3 Months Ended	6 Months Ended	3 Months Ended	6 Months Ended		6 Months Ended
	Aug. 03, 2013	Feb. 02, 2013	Jul. 28, 2012	Aug. 03, 2013 Subordinated Serial Preferred Stock $2.30 Series 1 [Member]	Aug. 03, 2013 Subordinated Serial Preferred Stock $2.30 Series 1 [Member]	Aug. 03, 2013 Subordinated Serial Preferred Stock $4.75 Series 3 [Member]	Aug. 03, 2013 Subordinated Serial Preferred Stock $4.75 Series 3 [Member]	Aug. 03, 2013 Subordinated Serial Preferred Stock $4.75 Series 4 [Member]	Aug. 03, 2013 Subordinated Serial Preferred Stock $4.75 Series 4 [Member]	Aug. 03, 2013 Subordinated Serial Preferred Stock Series 1, 3 and 4 [Member]	Aug. 03, 2013 Non-Redeemable Preferred Stock [Member]	Aug. 03, 2013 $1.50 Subordinated Cumulative Preferred Stock [Member]	Aug. 03, 2013 Employees Subordinated Convertible Preferred Stock [Member]
Equity (Textual) [Abstract]
Preferred stock, dividend rate				$ 2.30	$ 2.30	$ 4.75	$ 4.75	$ 4.75	$ 4.75			$ 1.50
Par value of preferred stock (USD per share)				$ 40	$ 40	$ 100	$ 100	$ 100	$ 100			$ 1.50
Conversion of stock, shares converted					13,713		6,046
Stock redeemed, shares					2,490		1,352		3,247			30,067
Preferred stock, redemption amount										$ 600,000		$ 900,000
Tender offer for outstanding common stock											15.00%
Redeemable price per right (USD per share)	$ 0.01
Number of common stock		1
Multiplication value to Quarterly dividend per share of common stock for calculation of Stated and liquidation values and redemption price													88.00%
Stated and liquidation values and redemption price per share dividend paid on common stock plus accumulated dividends												$ 30	$ 30
Common stock, par value (USD per share)	$ 1	$ 1	$ 1
Common stock, shares authorized	80,000,000	80,000,000	80,000,000
Common stock, shares issued	24,468,597	24,484,915	24,782,586
Exercise of stock options	920,000	4,808,000
Issue shares - Employee Stock Purchase Plan		157,000
Common stock value repurchased and retired	$ 1,462,000										$ 1,462,000