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Earnings per Share (Tables)
 3 Months Ended
Nov. 30, 2018
Earnings Per Share [Abstract]  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
The following is a reconciliation of the numerators and denominators of the basic and diluted computations for earnings per common share (in thousands, except per share data):
 
 
 
Three Months Ended

November 30,
 
 
 
2018
 
 
2017
 
EPS:
 
 
 
 
 
 
   Net income
 
$
1,925
 
 
$
1,195
 
   Less:  accrued preferred stock dividends
 
 
(19
)
 
 
(19
)
Net income available for common   shareholders
 
$
1,906
 
 
$
1,176
 
 
 
 
 
 
 
 
 
 
Earnings per common share  – basic and diluted
 
$
0.39
 
 
$
0.24