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CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)
Dec. 31, 2014
Sep. 30, 2014
CONSOLIDATED BALANCE SHEETS    
Accounts receivable, allowance for doubtful accounts (in dollars) $ 33,000us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent $ 34,000us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent
Common stock, par value (in dollars per share) $ 0.50us-gaap_CommonStockParOrStatedValuePerShare $ 0.50us-gaap_CommonStockParOrStatedValuePerShare
Common stock, authorized shares 20,000,000us-gaap_CommonStockSharesAuthorized 20,000,000us-gaap_CommonStockSharesAuthorized
Common stock, issued shares 8,445,060us-gaap_CommonStockSharesIssued 8,445,060us-gaap_CommonStockSharesIssued
Treasury stock, shares 167,900us-gaap_TreasuryStockShares 167,900us-gaap_TreasuryStockShares