Debt (Credit Agreement Interest Expense) (Details) - USD ($) |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2018 |
Jun. 30, 2017 |
Jun. 30, 2018 |
Jun. 30, 2017 |
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| Debt [Abstract] | ||||
| Amortization of credit agreement and residual royalty agreement | $ 1,255,062 | $ 1,572,809 | ||
| Accretion of residual royalty agreement liability | 94,858 | 122,136 | ||
| Amortization of deferred issuance costs | 30,202 | 35,772 | ||
| Interest expense | $ 1,380,122 | $ 1,730,717 | ||
| X | ||||||||||
- Definition Amount recognized for the passage of time, typically for liabilities, that have been discounted to their net present values. Excludes accretion associated with asset retirement obligations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of amortization expense attributable to debt issuance costs. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of amortization expense attributable to debt discount (premium) and debt issuance costs. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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- Definition Amount of the cost of borrowed funds accounted for as interest expense. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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