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DEBT AND CAPITAL LEASES: (Details 3) (USD $)
 12 Months Ended
Sep. 30, 2012
Sep. 30, 2011
item
Capital Leases:    
Interest rate (as a percent)   6.42%
Gross capital leases $ 100,000 100,000
Accumulated depreciation 20,000 100,000
Remaining lease obligation 77,000  
Principal payments due    
2013 51,000  
2014 26,000  
Warrants
    
Assumptions used in valuing the warrants and the embedded conversion features    
Risk free interest rate (as a percent) 0.62% 1.60%
Contractual term 5 years 5 years
Expected lives 5 years 5 years
Expected volatility (as a percent) 70.30% 70.90%
Fair value per warrants per share or per $1.25 of debt (in dollars per share) 0.23 1.01
Convertible debentures
    
Assumptions used in valuing the warrants and the embedded conversion features    
Risk free interest rate (as a percent) 0.23% 0.42%
Expected lives 27 months 27 months
Expected volatility (as a percent) 70.30% 71.80%
Fair value per warrants per share or per $1.25 of debt (in dollars per share) 0.05 0.63
Carrying value of the Convertible Debentures    
Value of financial instruments to Convertible Debentures purchasers (131,000) (268,000)
Value of warrants issued to Convertible Debentures purchasers (17,000) (36,000)
Carrying Value 202,000 46,000
Due in fiscal year 2014 $ 350,000