Geographic Location Information (Tables)

12 Months Ended

Apr. 30, 2016

Segments, Geographical Areas [Abstract]

Revenues, Total Assets and Long-Lived Assets by Geographic Location

	United
	States		Europe		Other*		Consolidated
April 30, 2016
Revenues	$	19,713,000	$	4,405,000	$	1,064,000	$	25,182,000
Total assets	$	5,743,000	$	8,000	$	0	$	5,751,000
Long lived assets	$	1,490,000	$	0	$	0	$	1,490,000
April 30, 2015
Revenues	$	23,285,000	$	3,785,000	$	1,188,000	$	28,258,000
Total assets	$	6,269,000	$	6,000	$	0	$	6,275,000
Long lived assets	$	1,498,000	$	0	$	0	$	1,498,000