Note 10 - Per Share Data (Tables)

9 Months Ended

Sep. 27, 2014

Earnings Per Share [Abstract]

Schedule of Weighted Average Number of Shares [Table Text Block]

	Thirteen Week Periods Ended				Thirty-Nine Week Periods Ended
	September 27, 2014		September 28, 2013		September 27, 2014		September 28, 2013
Basic weighted average shares outstanding		12,540,955		12,364,018		12,494,793		12,333,318
Dilutive effect of outstanding stock options		217,850		123,400		198,036		98,143
Weighted average dilutive shares outstanding		12,758,805		12,487,418		12,692,829		12,431,461

Unissued Shares of Common Stock [Table Text Block]

	September 27, 2014		December 28, 2013
Exercise of options outstanding		222,900		276,900
Restricted stock awards outstanding		300,000		300,000
Future grants of options or shares		19,100		34,100
Shares reserved for employee stock purchase plan		122,484		189,576
Total		664,484		800,576