Quarterly report pursuant to Section 13 or 15(d)

Note 5 - Stock-based Compensation - Non-vested Stock to Directors (Details)

v3.7.0.1
Note 5 - Stock-based Compensation - Non-vested Stock to Directors (Details) - Non Employee Directors [Member]
 3 Months Ended
Jul. 02, 2017
$ / shares
shares
August 10, 2016 [Member]  
Number of Shares (in shares) | shares 28,000
Fair Value Per Share (in dollars per share) | $ / shares $ 10.08
August 12, 2015 [Member]  
Number of Shares (in shares) | shares 28,000
Fair Value Per Share (in dollars per share) | $ / shares $ 8.20
August 11, 2014 [Member]  
Number of Shares (in shares) | shares 28,000
Fair Value Per Share (in dollars per share) | $ / shares $ 7.97