Condensed Consolidated Statements of Operations (unaudited) (USD $) Share data in Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Jun. 29, 2013	Jun. 30, 2012
Net sales	$ 3,037,000	$ 4,058,000
Cost of sales	1,913,000	2,428,000
Gross margin	1,124,000	1,630,000
Operating expenses:
Engineering	1,106,000	933,000
Selling, general and administrative	1,313,000	1,310,000
Restructuring	195,000	92,000
Total operating expenses	2,614,000	2,335,000
Operating loss	(1,490,000)	(705,000)
Gain on sale of product line	816,000
Other income	8,000
Interest expense, net	(13,000)
Loss before income taxes	(679,000)	(705,000)
Provision for income taxes	2,000	2,000
Net loss	$ (681,000)	$ (707,000)
Loss per common share - basic (in Dollars per share)	$ (0.13)	$ (0.14)
Loss per common share - diluted (in Dollars per share)	$ (0.13)	$ (0.14)
Weighted average shares used in per share calculation:
Basic (in Shares)	5,052	5,030
Diluted (in Shares)	5,052	5,030