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SHARE-BASED PAYMENTS Equity- and Liability- Classified Awards (Details) - USD ($)
12 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Liability-classified share options    
Shares    
Outstanding at the beginning of the period (in shares) 591,250  
Granted (in shares) 0  
Exercised (in shares) 0  
Expired/Forfeited (in shares) (27,500)  
Outstanding at the end of the period (in shares) 563,750 591,250
Exercisable at the end of period (in shares) 556,250  
Weighted-Average Exercise Price    
Outstanding at the beginning of the period (in dollars per share) $ 7.98  
Granted (in dollars per share) 0.00  
Exercised (in dollars per share) 0.00  
Expired/Forfeited (in dollars per share) 8.18  
Outstanding at the end of the period (in dollars per share) 7.97 $ 7.98
Exercisable at the end of period (in dollars per share) $ 8.04  
Weighted-Average Remaining Contractual Term    
Options outstanding, weighted average contractual life 1 year 7 months 6 days  
Options exercisable, weighted average contractual life 1 year 6 months  
Aggregate Intrinsic Value    
Options outstanding, aggregate intrinsic value $ 0  
Options exercisable, aggregate intrinsic value $ 0  
Assumptions used in estimating fair value    
Expected volatility range, minimum 53.10% 56.70%
Expected volatility range, maximum 69.50% 72.70%
Weighted-average volatility 64.60% 63.60%
Expected dividends 0.00% 0.00%
Risk-free interest rate, minimum 1.10% 0.60%
Risk-free interest rate, maximum 2.10% 1.40%
Expected forfeitures 0.00% 0.00%
Liability-classified share options | Minimum    
Assumptions used in estimating fair value    
Expected term 2 months 12 days 1 year 2 months 12 days
Liability-classified share options | Maximum    
Assumptions used in estimating fair value    
Expected term 6 years 2 months 12 days 7 years 2 months 12 days
Equity-classified share options    
Shares    
Outstanding at the beginning of the period (in shares) 30,000  
Granted (in shares) 0  
Exercised (in shares) 0  
Expired/Forfeited (in shares) 0  
Outstanding at the end of the period (in shares) 30,000 30,000
Exercisable at the end of period (in shares) 22,500  
Weighted-Average Exercise Price    
Outstanding at the beginning of the period (in dollars per share) $ 3.01  
Granted (in dollars per share) 0.00  
Exercised (in dollars per share) 0.00  
Expired/Forfeited (in dollars per share) 0.00  
Outstanding at the end of the period (in dollars per share) 3.01 $ 3.01
Exercisable at the end of period (in dollars per share) $ 3.01  
Weighted-Average Remaining Contractual Term    
Options outstanding, weighted average contractual life 6 years 2 months 12 days  
Options exercisable, weighted average contractual life 6 years 2 months 12 days  
Aggregate Intrinsic Value    
Options outstanding, aggregate intrinsic value $ 0  
Options exercisable, aggregate intrinsic value $ 0