16. Related-party Transactions Not Otherwise Disclosed (Details) - USD ($) |
3 Months Ended | 6 Months Ended | |
|---|---|---|---|
Mar. 31, 2017 |
Mar. 31, 2017 |
Mar. 31, 2016 |
|
| Principal payments on notes payable | $ 2,492,978 | $ 2,402,693 | |
| FormerExecutiveChairmanOfTheBoardOfDirectorsMember | |||
| Related Party Compensation, Hourly Rate | $ 250 | ||
| FormerExecutiveChairmanAndChiefExecutiveOfficerMember | |||
| Related Party Compensation, Hourly Rate | $ 250 | ||
| Principal payments on notes payable | $ 135,000 | ||