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Nature Of Business And Summary Of Significant Accounting Policies (Schedule Of Allowance For Doubtful Accounts) (Details) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
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Sep. 30, 2012
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Sep. 30, 2011
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Sep. 30, 2010
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| Nature Of Business And Summary Of Significant Accounting Policies [Abstract] | |||
| Allowance for doubtful accounts balance - beginning of year | $ 78 | $ 129 | $ 160 |
| Additions to the allowance for doubtful accounts | 93 | 92 | 99 |
| Deductions against the allowance for doubtful accounts | (64) | (143) | (130) |
| Allowance for doubtful accounts balance - end of year | $ 107 | $ 78 | $ 129 |