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Summary of Significant Accounting Policies Summary of Significant Accounting Policies (Details) (USD $)
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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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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
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| Foreign Currency Derivatives at Fair Value, Net |
$ (40,616) |
$ 82,206 |
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| Notional Amount of Foreign Currency Derivatives |
3,500,000 |
|
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| Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax |
(135,219) |
(190,929) |
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| Research and Development Expense |
5,207,997 |
5,930,719 |
5,510,207 |
| Available-for-sale Securities, Gross Unrealized Gains |
6,001 |
35,709 |
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| Available-for-sale Securities, Amortized Cost Basis |
399,168 |
1,999,884 |
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| Available-for-sale Securities, Equity Securities |
28,053 |
|
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| Available-for-sale Securities, Debt Securities |
377,116 |
|
|
| Share-based Compensation |
$ 297,718 |
$ 293,906 |
$ 290,584 |
| Share Based Compensation per share |
$ 0.07 |
$ 0.07 |
$ 0.06 |
| Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate |
0.00% |
0.00% |
0.00% |
| Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate |
0.00% |
0.00% |
0.00% |
| Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate |
100.00% |
100.00% |
100.00% |
| Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term, Simplified Method |
7.5 years |
7.2 years |
7.5 years |
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Minimum [Member]
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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|
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| Property, Plant and Equipment, Useful Life |
2 years |
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Maximum [Member]
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|
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
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| Property, Plant and Equipment, Useful Life |
10 years |
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|
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Building [Member] | Minimum [Member]
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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|
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| Property, Plant and Equipment, Useful Life |
25 years |
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Building [Member] | Maximum [Member]
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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|
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| Property, Plant and Equipment, Useful Life |
40 years |
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