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Earnings Per Share (Details) - USD ($)
3 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Numerator:    
Net income $ 327,908 $ 139,421
Denominator:    
Basic weighted average shares 16,909,036 16,840,599
Dilutive effect of share-based awards 172,542  
Diluted weighted average shares 17,081,578 16,840,599
Earnings per common share:    
Basic EPS (in dollars per share) $ 0.02 $ 0.01
Diluted EPS (in dollars per share) $ 0.02 $ 0.01
Options to purchase common stock outstanding (in shares) 550,834 550,834
Diluted weighted-average shares outstanding excluded from computation of diluted EPS (in shares) 0 550,834