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ACCOUNTS RECEIVABLE AND CONTRACT COSTS (Details) (USD $)
 12 Months Ended
Sep. 30, 2012
Sep. 30, 2011
ACCOUNTS RECEIVABLE AND CONTRACT COSTS    
Allowances for doubtful accounts $ 45,000 $ 70,000
Contract retainage balance included in accounts receivable 307,000 324,000
Expected collection period of retainage balance 1 year  
Expected collection period of retainage balance after the related contracts have received final acceptance and approval 45 days  
Costs and estimated (loss) earnings on uncompleted contracts    
Costs incurred on uncompleted contracts 2,373,000 1,315,000
Estimated (loss) earnings (238,000) 169,000
Costs and estimated earnings on uncompleted contracts 2,135,000 1,484,000
Less billings to date 2,331,000 1,403,000
Net costs and estimated (loss) earnings in excess of (less than) billings (196,000) 81,000
Costs and estimated (loss) earnings on uncompleted contracts included in the consolidated balance sheets    
Costs and estimated earnings in excess of billings on uncompleted contracts (included in other current assets) 321,000 444,000
Billings in excess of costs and estimated earnings on uncompleted contracts (included in other current liabilities) (517,000) (363,000)
Net costs and estimated (loss) earnings in excess of (less than) billings $ (196,000) $ 81,000