Quarterly report pursuant to Section 13 or 15(d)

Note 12 - Subsequent Events (Details Textual)

v3.7.0.1
Note 12 - Subsequent Events (Details Textual)
3 Months Ended
May 15, 2017
USD ($)
shares
Jul. 02, 2017
USD ($)
Apr. 02, 2017
USD ($)
shares
Apr. 03, 2016
USD ($)
Restructuring Charges | $     $ 176,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross     0  
Scenario, Forecast [Member]        
Restructuring Charges | $   $ 1,700,000    
Subsequent Event [Member]        
Restructuring and Related Cost, Expected Number of Positions Eliminated 210      
Subsequent Event [Member] | Incentive 2010 Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized 350,000      
Subsequent Event [Member] | President and Chief Executive Officer [Member]        
Officers' Compensation, Annual Base Salary | $ $ 325,000      
Officers' Compensation, Target Bonus, Percentage of Base Salary 50.00%      
Subsequent Event [Member] | President and Chief Executive Officer [Member] | Incentive 2010 Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross 671,858      
Subsequent Event [Member] | Chief Operating Officer [Member]        
Officers' Compensation, Annual Base Salary | $ $ 300,000      
Officers' Compensation, Target Bonus, Percentage of Base Salary 25.00%      
Subsequent Event [Member] | Chief Operating Officer [Member] | Incentive 2010 Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross 335,929      
Subsequent Event [Member] | Chief Financial Officer [Member] | Incentive 2010 Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross 335,929