INVESTMENT ASSETS: (Tables)

12 Months Ended

Apr. 30, 2013

Investment Assets [Abstract]

Schedule Of Investment Assets [Text Block]

Investment assets consist of:	April 30,
	2013		2012
	(in thousands)
Land held for long-term investment	$	10,552	$	10,769
Other		753		753
Less accumulated depreciation and reserves		(429)		(260)
		324		493
	$	10,876	$	11,262