Annual report pursuant to Section 13 and 15(d)

Note 5 - Retirement Plan (Details Textual)

v3.8.0.1
Note 5 - Retirement Plan (Details Textual) - USD ($)
12 Months Ended
Apr. 01, 2018
Apr. 02, 2017
Apr. 03, 2016
Mar. 29, 2015
Defined Contribution Plan, Employer Discretionary Contribution Amount $ 223,000 $ 252,000 $ 203,000  
First 2% Employee Contributions [Member]        
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay 100.00% 100.00% 100.00% 100.00%
Defined Contribution Plan Employee Contribution Percent 2.00% 2.00% 2.00% 2.00%
Next 1% Employee Contributions [Member]        
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay       50.00%
Defined Contribution Plan Employee Contribution Percent       1.00%
Next 3% Employee Contributions [Member]        
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay 50.00% 50.00% 50.00%  
Defined Contribution Plan Employee Contribution Percent 3.00% 3.00% 3.00%