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Stock-based Compensation, Equity Grants, and Warrants - Additional Information (Details) - USD ($)
$ in Thousands, shares in Millions
3 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Stock based expense $ 112 $ 374
2006 Long Term Incentive Plan    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of shares available for grant 0.8  
Expiration term of options 10 years  
2006 Long Term Incentive Plan | Employee Stock Option    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Stock based expense $ 304  
Prior Long Term Incentive Plan | Employee Stock Option    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Stock based expense $ 20