Note 1 - Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 26, 2015

Notes Tables

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

(in thousands)	2015		2014		2013
Weighted average common shares outstanding		26,057		25,393		24,859
Effect of dilutive stock options and restricted stock units		731		613		-
		26,788		26,006		24,859

Property, Plant and Equipment [Table Text Block]

	December 26,			December 27,
	2015			2014
Property, plant and equipment, at cost:
Land and land improvements	$	4,607		$	11,762
Buildings and building improvements		8,971			31,065
Machinery and equipment		31,888			32,356
		45,466			75,183
Less accumulated depreciation and amortization		(26,466	)		(43,329	)
Property plant and equipment, net	$	19,000		$	31,854

New Accounting Pronouncement, Early Adoption [Table Text Block]

	December 27, 2014
	As Filed			Reclass			As Adjusted
Current deferred income tax assets	$	4,406		$	(4,406	)	$	-
Noncurrent deferred income tax assets		-			353			353
Current deferred income tax liabilities (included in other accrued liabilities)		(261	)		261			-
Noncurrent deferred income tax liabilities		(11,061	)		3,792			(7,269	)
Net deferred income tax assets (liabilities)	$	(6,916	)	$	-		$	(6,916	)