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Equity (Schedule of Stock Options Activity) (Details) - USD ($)
12 Months Ended 24 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Number of Shares      
Outstanding, beginning of period (in shares) 51,854    
Granted (in shares)     0
Exercised (in shares) (650)    
Forfeited (in shares) (1,952)    
Expired (in shares) (5,187)    
Outstanding, end of period (in shares) 44,065 51,854 44,065
Exercisable (in shares) 41,877   41,877
Vested and expected to vest (in shares) 44,065   44,065
Weighted Average Exercise Price      
Outstanding, beginning of period (in usd per share) $ 5.00    
Exercised (in usd per share) 2.89    
Forfeited (in usd per share) 4.65    
Expired (in usd per share) 4.25    
Outstanding, ending of period (in usd per share) 5.14 $ 5.00 $ 5.14
Exercisable (in usd per share) 5.18   5.18
Vested and expected to vest (in usd per share) $ 5.14   $ 5.14
Weighted Average Remaining Contractual Life (in years)      
Weighted average remaining contractual life, outstanding (in years) 3 years 8 months 12 days    
Weighted average remaining contractual life, exercisable (in years) 3 years 7 months 9 days    
Weighted average remaining contractual term, vested and expected to vest (in years) 3 years 8 months 12 days    
Aggregate Intrinsic Value      
Intrinsic value of options exercised   $ 0  
Employee Stock Option      
Aggregate Intrinsic Value      
Unrecognized stock-based compensation expense $ 2,700   $ 2,700
Expected weighted average recognition period 6 months