PROPERTY, PLANT AND EQUIPMENT: (Tables)

12 Months Ended

Apr. 30, 2015

Property, Plant and Equipment Disclosure [Abstract]

Property, Plant and Equipment [Table Text Block]

Property, plant and equipment consist of:

	April 30,
	2015		2014
	(in thousands)
Land, buildings and improvements	$	20,000	$	20,191
Furniture and equipment		19,098		19,368
		39,098		39,559
Less accumulated depreciation		(23,335)		(22,337)
	$	15,763	$	17,222