Calculation of Loss Per Share (Detail) (USD $)	3 Months Ended		9 Months Ended
	Dec. 28, 2012	Dec. 30, 2011	Dec. 28, 2012	Dec. 30, 2011
Basic and Diluted
Weighted Average Basic Shares Outstanding	31,161,000	30,972,000	31,161,000	30,828,000
Dilutive effect of Stock Options and Warrants
Weighted Average Diluted Shares Outstanding	31,161,000	30,972,000	31,161,000	30,828,000
Net loss	$ (1,026,000)	$ (812,000)	$ (3,305,000)	$ (1,048,000)
Basic and Diluted loss per share	$ (0.03)	$ (0.03)	$ (0.11)	$ (0.03)