SHAREHOLDERS’ EQUITY (Details Textual) (USD $)	1 Months Ended	3 Months Ended
	Aug. 31, 2012	Jul. 31, 2013	Jul. 31, 2012	Jul. 03, 2013	Apr. 30, 2013
Common Stock, Shares, Issued		7,420,704		1,199,242	7,420,704
Common Stock, Par or Stated Value Per Share		$ 0.10		$ 6.25	$ 0.10
Proceeds from issuance of common stock, net		$ 7,146,000	$ 0
Share Issuance Expenses		350,000
Pension Contributions	3,000,000	8,688,000
Stock Issued During Period Value Reduction Of Retained Earnings		15,296,000
Stock Issued During Period value Reduction Of Treasury Stock		22,442,000
Subsequent Event [Member] | PBGC [Member]
Pension Contributions		$ 3,243,000