Note 5 - Property and Equipment (Details) - Property and Equipment (USD $) In Thousands, unless otherwise specified	Jun. 28, 2014	Dec. 28, 2013
Property, Plant and Equipment [Line Items]
Property plant and equipment gross	$ 9,191	$ 8,757
Less: accumulated depreciation and amortization	6,061	6,466
Property and equipment, net	3,130	2,291
Equipment and Furniture [Member]
Property, Plant and Equipment [Line Items]
Property plant and equipment gross	2,342	2,454
Computers and Systems [Member]
Property, Plant and Equipment [Line Items]
Property plant and equipment gross	6,180	5,670
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property plant and equipment gross	$ 669	$ 633