Note 10 - Per Share Data (Details) - Unissued Shares of Common Stock Were Reserved For The Following Purposes	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011
Unissued Shares of Common Stock Were Reserved For The Following Purposes [Abstract]
Exercise of options outstanding	276,900	307,400	916,594
Restricted stock awards outstanding	300,000	350,000
Future grants of options or shares	34,100	34,100
Shares reserved for employee stock purchase plan	189,576	247,752
Total	800,576	939,252