Condensed Consolidated Statements of Operations (USD $)	3 Months Ended
	Jun. 29, 2012	Jul. 01, 2011
Sales, net	$ 6,216,000	$ 8,120,000
Cost of products sold	3,972,000	4,742,000
Gross profit	2,244,000	3,378,000
Operating expenses:
Research, development and engineering	1,371,000	1,692,000
Sales and marketing	505,000	615,000
General and administrative	1,053,000	1,159,000
Amortization expense	292,000	342,000
Total operating expenses	3,221,000	3,808,000
Loss from operations	(977,000)	(430,000)
Other income (expense):
Interest income		2,000
Interest expense	(33,000)	(31,000)
Interest expense, related parties		(15,000)
Change in fair value of warrant liability	17,000	492,000
Net income (loss)	$ (993,000)	$ 18,000
Basic income (loss) per share	$ (0.03)	$ 0.00
Diluted income (loss) per share	$ (0.03)	$ 0.00
Weighted average common shares outstanding
Basic	31,161,000	30,687,000
Diluted	31,161,000	31,759,000