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Related Party Transactions (Details)
12 Months Ended
Sep. 30, 2015
USD ($)
member
Sep. 30, 2014
USD ($)
Related Party Transactions [Abstract]    
Members of CSP Inc.'s Board of Directors serving on related party company's board | member 2  
Revenue from Related Parties $ 313,637 $ 161,348
Accounts Receivable, Related Parties $ 12,540 $ 29,260