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Note 10 - Per Share Data (Tables)
12 Months Ended
Jan. 02, 2016
Notes Tables  
Schedule of Weighted Average Number of Shares [Table Text Block]
   
Fiscal Years Ended
 
   
January 2,
2016
   
January 3,
2015
 
Basic weighted average shares outstanding
    12,658,466       12,516,457  
Dilutive effect of outstanding restricted stock units
and stock options
    242,484       214,108  
                 
Weighted average dilutive shares outstanding
    12,900,950       12,730,565  
Unissued Shares of Common Stock [Table Text Block]
   
January 2,
2016
   
January 3,
2015
 
                 
Exercise of options outstanding
    44,500       53,000  
Restricted stock units outstanding
    208,834       500,000  
Future grants of options or shares
    382,000       425,000  
Shares reserved for employee stock purchase plan
    349,436       122,484  
                 
Total
    984,770       1,100,484