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