Note 1 - Basis of Presentation (Details) (USD $)	3 Months Ended		12 Months Ended		3 Months Ended
	Jun. 29, 2013	Jun. 30, 2012	Mar. 30, 2013	Mar. 31, 2012	Jun. 29, 2013 Subsequent Event [Member] New Warrant [Member] Series D Preferred Stock [Member]	Jun. 29, 2013 Subsequent Event [Member] New Warrant [Member]	Jun. 29, 2013 Subsequent Event [Member] Series D Preferred Stock [Member]	Jun. 29, 2013 Series D Preferred Stock [Member]	Mar. 30, 2013 Series D Preferred Stock [Member]	Jun. 10, 2013 Second Amended Credit Facility [Member]	Jun. 29, 2013 New Amended Credit Facility [Member]
Note 1 - Basis of Presentation (Details) [Line Items]
Net Income (Loss) Attributable to Parent	$ (681,000)	$ (707,000)	$ (4,200,000)	$ (5,900,000)
Retained Earnings (Accumulated Deficit)	(14,959,000)		(14,278,000)
Nontrade Receivables, Current			1,000,000
Line of Credit Facility, Maximum Borrowing Capacity										2,000,000	3,000,000
Proceeds from Issuance of Preferred Stock, Preference Stock, and Warrants (in Dollars)					858,000
Preferred Stock, Shares Issued (in Shares)							5,111.86	0	0
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in Shares)						511,186
Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per Item)						1.43
Customer Advances, Current	1,300,000		2,300,000
Expected Annual Savings in Facility Costs	$ 500,000