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Property and Equipment (Details) (USD $)
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3 Months Ended | 6 Months Ended | |||
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Mar. 31, 2013
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Mar. 31, 2012
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Mar. 31, 2013
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Mar. 31, 2012
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Sep. 30, 2012
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| Summary of property and equipment [Abstract] | |||||
| Total property and equipment, at cost | $ 3,745,000 | $ 3,745,000 | $ 3,758,000 | ||
| Accumulated depreciation and amortization | (3,230,000) | (3,230,000) | (3,240,000) | ||
| Property and equipment, net | 515,000 | 515,000 | 518,000 | ||
| Depreciation expense | 41,000 | 34,000 | 83,000 | 75,000 | |
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Computer software [Member]
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| Summary of property and equipment [Abstract] | |||||
| Useful life of property and equipment | 5 years | ||||
| Total property and equipment, at cost | 1,447,000 | 1,447,000 | 1,447,000 | ||
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Office equipment furniture and fixtures and leasehold improvements [Member]
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| Summary of property and equipment [Abstract] | |||||
| Total property and equipment, at cost | $ 2,298,000 | $ 2,298,000 | $ 2,311,000 | ||
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Office equipment furniture and fixtures and leasehold improvements [Member] | Minimum [Member]
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| Summary of property and equipment [Abstract] | |||||
| Useful life of property and equipment | 2 years | ||||
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Office equipment furniture and fixtures and leasehold improvements [Member] | Maximum [Member]
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| Summary of property and equipment [Abstract] | |||||
| Useful life of property and equipment | 10 years | ||||