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Consolidated Statements of Shareholders' Equity - USD ($)
$ in Thousands
Total
Stock Options
Common Stock
Common Stock
Stock Options
Retained Earnings
Accumulated Other Compre-hensive Income (Loss)
Balance at beginning of period (in shares) at Sep. 30, 2020     8,310,793      
Balance at beginning of period at Sep. 30, 2020 $ 187,630   $ 42,396   $ 145,173 $ 61 [1]
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Net income 7,290       7,290  
Other comprehensive loss (17)         (17)
Repurchase of common stock (in shares)     (2,900)      
Repurchase of common stock $ (58)   $ (58)      
Exercise of stock options (in shares) 9,900   9,900      
Exercise of stock options $ 96   $ 96      
Common stock dividends (1,662)       (1,662)  
Stock option compensation expense   $ 46   $ 46    
Balance at end of period (in shares) at Dec. 31, 2020     8,317,793      
Balance at end of period at Dec. 31, 2020 193,325   $ 42,480   150,801 44 [1]
Balance at beginning of period (in shares) at Sep. 30, 2021     8,355,469      
Balance at beginning of period at Sep. 30, 2021 206,899 [2]   $ 42,673   164,167 59 [1]
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Net income 5,485       5,485  
Other comprehensive loss (17)         (17)
Repurchase of common stock (in shares)     (15,548)      
Repurchase of common stock $ (433)   $ (433)      
Exercise of stock options (in shares) 8,900   8,900      
Exercise of stock options $ 130   $ 130      
Common stock dividends (1,755)       (1,755)  
Stock option compensation expense   $ 66   $ 66    
Balance at end of period (in shares) at Dec. 31, 2021     8,348,821      
Balance at end of period at Dec. 31, 2021 $ 210,375   $ 42,436   $ 167,897 $ 42 [1]
[1] All amounts are net of income taxes.
[2] Derived from audited consolidated financial statements.