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Note 5 - Property, Equipment and Improvements (Detail) - USD ($)
$ in Thousands
Mar. 27, 2016
Dec. 31, 2015
Property, Plant and Equipment, Net [Abstract]    
Land $ 123 $ 123
Buildings and leasehold improvements 7,854 7,490
Machinery and equipment 49,521 49,609
Furniture and fixtures 1,993 1,974
Computer hardware and software 4,685 4,585
Construction in process 763 745
Total 64,939 64,526
Less-Accumulated depreciation (56,074) (55,488)
Total $ 8,865 $ 9,038