Quarterly report pursuant to Section 13 or 15(d)

Note 4 - Stock-based Compensation (Details Textual)

v3.3.1.900
Note 4 - Stock-based Compensation (Details Textual) - USD ($)
1 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended
Aug. 31, 2015
Dec. 27, 2015
Sep. 27, 2015
Jun. 28, 2015
Dec. 28, 2014
Jun. 29, 2014
Dec. 29, 2013
Dec. 30, 2012
Jun. 27, 2010
Dec. 27, 2015
Dec. 28, 2014
Apr. 02, 2017
Apr. 03, 2016
Mar. 29, 2015
Mar. 30, 2014
Performance Shares [Member] | Scenario, Forecast [Member] | Officer [Member] | Awards Granted During 3 Month Period Ended June 29, 2014 [Member]                              
Allocated Share-based Compensation Expense                         $ 354,000    
Performance Shares [Member] | Scenario, Forecast [Member] | Officer [Member] | Awards Granted During 3 Month Period Ended June 28, 2015 [Member]                              
Allocated Share-based Compensation Expense                       $ 140,000 $ 140,000    
Performance Shares [Member] | Officer [Member] | Awards Granted During 3 Month Period Ended June 29, 2014 [Member]                              
Allocated Share-based Compensation Expense                           $ 354,000 $ 354,000
Performance Shares [Member] | Officer [Member] | Awards Granted During 3 Month Period Ended June 28, 2015 [Member]                              
Allocated Share-based Compensation Expense                           $ 140,000  
Performance Shares [Member] | Officer [Member]                              
Payments Related to Tax Withholding for Share-based Compensation       $ 360,000                      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period       94,116                      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Vested       $ 735,000                      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period       58,532   188,232                  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value       $ 7.18   $ 5.65                  
Performance Shares [Member]                              
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition                     3 years        
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period                     2 years        
Employee Stock Option [Member]                              
Allocated Share-based Compensation Expense   $ 31,000     $ 34,000         $ 108,000 $ 110,000        
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options   113,000               $ 113,000          
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition                   270 days          
Restricted Stock [Member] | Director [Member]                              
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period                   2 years          
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period 28,000                            
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Vested $ 226,000                            
Restricted Stock [Member]                              
Payments Related to Tax Withholding for Share-based Compensation     $ 948,000                        
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition                   141 days          
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Vested     $ 1,900,000                        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period                 345,000            
Share Base Compensation Arrangement by Share Based Payment Award Equity Instrument Other Than Options Grants in Period Total Grant Date Fair Value                 $ 1,200,000            
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number       240,000                      
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized   $ 510,000               $ 510,000          
The 2014 Omnibus Equity Compensation Plan [Member]                              
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized   1,000,000               1,000,000          
Allocated Share-based Compensation Expense   $ 212,000     225,000         $ 691,000 652,000        
Employee Service Share-based Compensation, Allocation of Recognized Period Costs, Capitalized Amount                   0          
Proceeds from Stock Options Exercised   0               0          
Payments Related to Tax Withholding for Share-based Compensation   25,000     $ 5,000         37,000 $ 5,000        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value   334,000               334,000          
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value   314,000               314,000          
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value   $ 68,000               $ 101,000          
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period   28,000     28,000   28,000 42,000              
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value   $ 8.20     $ 7.97   $ 6.67 $ 5.62