Commitments and Contingencies Commitments and Contingencies (Details) - USD ($)	12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Unrecorded Unconditional Purchase Obligation [Line Items]
Operating Leases, Future Minimum Payments Due	$ 1,845,000
Operating Leases, Future Minimum Payments Due, Next Twelve Months	774,000
Operating Leases, Future Minimum Payments, Due in Two Years	726,000
Operating Leases, Future Minimum Payments, Due in Three Years	274,000
Operating Leases, Future Minimum Payments, Due in Four Years	71,000
Operating Leases, Rent Expense	696,114	$ 690,020
Contingent change in control liability	1,700,000
Postemployment Benefits Liability, Noncurrent	1,000,000
Deferred Compensation Arrangement with Individual, Compensation Expense	$ 38,000	$ 38,000
Deferred Compensation Arrangement with Individual, Shares Authorized for Issuance	6,561
Fair value of deferred compensation shares held in treasury until retirement or involuntary separation	$ 20,000