Note 7 - Shareholders' Equity (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 27, 2015	Sep. 28, 2014	Sep. 27, 2015	Sep. 28, 2014
Stock compensation expense	$ 135,000	$ 237,000	$ 439,000	$ 721,000
Stock Options
Stock compensation expense	112,000	142,000	368,000	430,000
CEO Restricted Stock expense
Stock compensation expense	0	34,000	0	117,000
Employee Restricted Stock
Stock compensation expense	23,000	4,000	71,000	4,000
Board of Directors Stock Grant
Stock compensation expense	$ 0	$ 57,000	$ 0	$ 170,000