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Stock-based Compensation, Equity Grants, and Warrants - Stock Option Activity (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 9 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Number of Shares    
Outstanding at the beginning of the period (in shares) 2,324  
Granted (in shares) 0  
Cancelled (in shares) (110)  
Outstanding at the end of the period (in shares) 2,214 2,336
Weighted Average Exercise Price    
Outstanding at the beginning of the period (in dollars per share) $ 1.40  
Granted (in dollars per share) 0.00  
Cancelled (in dollars per share) 1.40  
Outstanding at the end of the period (in dollars per share) $ 1.40  
Weighted Average Remaining Contractual Term    
Weighted Average Remaining Contractual Term 6 years 4 days 6 years 9 months 22 days
Aggregate Intrinsic Value    
Outstanding at the beginning of the period (in dollars) $ 3,649  
Outstanding at the end of the period (in dollars) $ 8,365