Note 4 - Gain on Sale of Product Line (Details) (USD $)	3 Months Ended			3 Months Ended	1 Months Ended
	Jun. 29, 2013	Jun. 30, 2012	Mar. 30, 2013	Jun. 30, 2012 SCPM [Member]	Apr. 30, 2013 Proceeds at Closing [Member]	Apr. 30, 2013 Training Employees [Member]
Note 4 - Gain on Sale of Product Line (Details) [Line Items]
Nontrade Receivables, Current			$ 1,000,000
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax	816,000
Proceeds from Divestiture of Businesses	(800,000)				800,000	50,000
Other Nonrecurring Expense						34,000
Contingent Consideration, Hold Back for Contingent Liabilities	150,000
Revenue, Net	$ 3,037,000	$ 4,058,000		$ 430,000