CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Apr. 30, 2014	Apr. 30, 2013
Revenues:
Sales of products	$ 21,360	$ 9,316
Services	1,338	1,255
Total Revenues	22,698	10,571
Cost of sales:
Cost of product sales	14,296	6,282
Cost of services	412	413
Total cost of sales	14,708	6,695
Gross profit	7,990	3,876
Research and development expenses	139	0
Selling, general and administrative expenses	2,978	2,325
Income from operations	4,873	1,551
Other income:
Interest and dividend income	2	1
Other	3	0
Income before provision (benefit) for income taxes	4,878	1,552
Provision (benefit) for income taxes	1,782	(1,547)
Net income	$ 3,096	$ 3,099
Net income per share:
Basic (in dollars per share)	$ 0.24	$ 0.24
Weighted average shares used in computation of net income per share:
Basic (in shares)	12,963	12,963