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Nature of Operations and Summary of Significant Accounting Policies - Summary of Accounts Receivable (Detail) (USD $)
Dec. 31, 2014
Sep. 30, 2014
Receivables [Abstract]    
Accounts receivable $ 3,533,970us-gaap_AccountsReceivableGrossCurrent $ 2,961,450us-gaap_AccountsReceivableGrossCurrent
Less: Allowance for doubtful accounts (16,200)us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent (6,100)us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent
Accounts receivable, net $ 3,517,770us-gaap_AccountsReceivableNetCurrent $ 2,955,350us-gaap_AccountsReceivableNetCurrent