CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Net sales	$ 17,919	$ 19,568
Cost of sales	12,353	12,763
Gross profit	5,566	6,805
Selling, general, and administrative expenses	3,961	2,733
Engineering expense	1,825	1,819
Operating income (loss)	(220)	2,253
Interest expense	8	18
Other expense – net	29	21
Income (loss) before income taxes	(257)	2,214
Income tax provision (benefit)	(95)	841
Net income (loss)	$ (162)	$ 1,373
Earnings (loss) per common share:
Basic net income (loss) per share	$ (0.02)	$ 0.14
Diluted net income (loss) per share	$ (0.02)	$ 0.14
Weighted-average basic shares outstanding	9,715,000	9,568,000
Weighted-average diluted shares outstanding	9,715,000	9,667,000