Note 10 - Per Share Data (Details) - Unissued Shares of Common Stock Were Reserved For The Following Purposes	Jun. 28, 2014	Dec. 28, 2013
Unissued Shares of Common Stock Were Reserved For The Following Purposes [Abstract]
Exercise of options outstanding	226,400	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	155,714	189,576
Total	701,214	800,576