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Other Assets: (Details) (USD $)
12 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2012
Other assets:      
Intangible assets, net of accumulated amortization of $499,837 and $495,037 at September 30, 2014 and September 30,2013 $ 100,400us-gaap_IntangibleAssetsNetExcludingGoodwill $ 105,200us-gaap_IntangibleAssetsNetExcludingGoodwill  
Other non-current assets 10,448us-gaap_OtherAssetsMiscellaneousNoncurrent 116,333us-gaap_OtherAssetsMiscellaneousNoncurrent  
Total other assets 110,848us-gaap_OtherAssetsNoncurrent 221,533us-gaap_OtherAssetsNoncurrent  
Accumulated amortization of intangible assets 499,837us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization 495,037us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization  
Impairment charges 0us-gaap_ImpairmentOfIntangibleAssetsFinitelived 0us-gaap_ImpairmentOfIntangibleAssetsFinitelived 0us-gaap_ImpairmentOfIntangibleAssetsFinitelived
Total intangible amortization expense $ 5,000us-gaap_AmortizationOfIntangibleAssets $ 100,000us-gaap_AmortizationOfIntangibleAssets $ 100,000us-gaap_AmortizationOfIntangibleAssets