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Stockholders' Equity - Nonvested Restricted Stock Unit Activity (Details) - Restricted Stock Units - USD ($)
$ in Thousands
12 Months Ended 24 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2013
Shares        
Beginning balance (in shares) 57,790 124,364 124,364  
Vested (in shares) (55,670) (57,790)    
Forfeited (in shares) (2,120) (8,784)    
Ending balance (in shares) 0 57,790 0  
Weighted Average Grant Due Fair Value        
Balance $ 0 $ 253 $ 0 $ 472
Vested 199 253    
Forfeited $ 5 $ 39