XML 54 R41.htm IDEA: XBRL DOCUMENT v3.7.0.1
Note 10 - Net Income Per Common Share (Details Textual) - shares
3 Months Ended 9 Months Ended
May 31, 2017
May 31, 2016
May 31, 2017
May 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number 271,791   271,791  
Employee Stock Option [Member]        
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 48,067 170,887 48,067 170,887