Note 14 - Lease Financing Obligation (Details) - Rent Expense - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Sep. 27, 2015	Sep. 28, 2014	Sep. 27, 2015	Sep. 28, 2014
Rent Expense [Abstract]
Rent expense	$ 234	$ 564	$ 491	$ 896

Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

No definition available.

Name:	us-gaap_LeaseAndRentalExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration