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Basis for Presentation (Details)
1 Months Ended 3 Months Ended 12 Months Ended
Feb. 28, 2015
item
Mar. 31, 2015
USD ($)
contract
Sep. 30, 2014
USD ($)
Sep. 30, 2014
USD ($)
Quantifying Misstatement in Current Year Financial Statements        
Number of reporting segments | item 2      
Interim Goodwill Impairment Test        
Impairment of goodwill   $ 0    
Defense service reporting unit        
Interim Goodwill Impairment Test        
Number of contracts | contract   2    
Adjustments | Audit Committee Investigation        
Quantifying Misstatement in Current Year Financial Statements        
Quantifying immaterial misstatement amount     $ 750,000 $ 750,000
Adjustments | Correction Of Immaterial Errors        
Quantifying Misstatement in Current Year Financial Statements        
Quantifying immaterial misstatement amount       $ 1,600,000