XML 62 R50.htm IDEA: XBRL DOCUMENT v3.8.0.1
Note 6 - Stockholders' Equity - Stock Options Outstanding and Exercisable (Details) - USD ($)
12 Months Ended
May 28, 2017
May 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price $ 13.58 $ 14.02
Range 3 [Member]    
Lower Range of Exercise Prices (in dollars per share) 5.77  
Upper Range of Exercise Prices (in dollars per share) $ 14.39  
Options Outstanding Number of Shares Outstanding (in shares) 1,571,542  
Options Outstanding Weighted Average Remaining Contractual Life (Year) 4 years 248 days  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price $ 13.20  
Options Outstanding Aggregate Intrinsic Value $ 1,362,499  
Options Exercisable Number of Shares Exercisable (in shares) 1,021,097  
Options Exercisable Weighted Average Exercise Price (in dollars per share) $ 13.40  
Options Exercisable Aggregate Intrinsic Value $ 752,758