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Acquisition (Details) (USD $)
 12 Months Ended 0 Months Ended 12 Months Ended 0 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Oct. 31, 2012
Etherios, Inc
Sep. 30, 2013
Etherios, Inc
Oct. 31, 2012
Maximum
Etherios, Inc
Oct. 31, 2012
Common Stock
Etherios, Inc
Business Acquisition [Line Items]            
Total purchase price     $ 20,400,000      
Cash, including cash in escrow     13,700,000      
Cash acquired     800,000      
Common stock     6,700,000      
Number of shares           715,571
Common stock issued per common share           $ 9.42
Amount in escrow     2,350,000      
Escrow holdback     300,000      
Escrow cash     2,050,000      
Escrow cash period         18 months  
Purchase accounting adjustment       (100,000)    
Net Tangible Assets purchase accounting adjustment       (300,000)    
Goodwill, Purchase Accounting Adjustments       200,000    
Goodwill 0 17,282,000   17,300,000    
Acquisition related costs       $ 200,000