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Earnings Per Share (Details) - USD ($)
 3 Months Ended 9 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Numerator:        
Net income (loss) $ 226,797 $ (3,531,973) $ 1,589,672 $ (3,302,322)
Denominator:        
Basic weighted average shares 16,941,707 16,910,475 16,925,688 16,930,522
Dilutive effect of share-based awards (in shares) 117,839   101,528  
Diluted weighted average shares 17,059,546 16,910,475 17,027,216 16,930,522
Earnings per common share:        
Basic EPS (in dollars per share) $ 0.01 $ (0.21) $ 0.09 $ (0.20)
Diluted EPS (in dollars per share) $ 0.01 $ (0.21) $ 0.09 $ (0.20)
Options to purchase common stock outstanding (in shares) 590,168 667,168 590,168 667,168
Weighted dilutive shares outstanding excluded from the computation of diluted earnings per share 340,586 400,641 359,571 402,063