Note 12 - Commitments and Contingencies (Details Textual) - USD ($)	12 Months Ended
	Apr. 03, 2016	Mar. 29, 2015
Operating Leases, Future Minimum Payments, Due in Three Years	$ 1,300,000
Operating Leases, Rent Expense	1,500,000	$ 1,400,000
Operating Leases, Future Minimum Payments Due	5,400,000
Operating Leases, Future Minimum Payments Due, Next Twelve Months	1,200,000
Operating Leases, Future Minimum Payments, Due in Two Years	1,300,000
Operating Leases, Future Minimum Payments, Due in Four Years	1,200,000
Operating Leases, Future Minimum Payments, Due in Five Years	342,000
Royalty Expense	9,000,000	$ 8,700,000
Royalty Expense Due	10,200,000
Royalty Expense Due in Next Twelve Months	5,200,000
Royalty Expense Due in Two Years	4,600,000
Royalty Expense Due in Three Years	$ 427,000