Leases - Lease Cost (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Jun. 30, 2020	Jun. 30, 2020
Finance lease cost:
Amortization of right of use asset	$ 108	$ 323
Interest on lease liabilities	205	620
Total finance lease cost	313	943
Operating lease costs:
Operating lease cost	381	1,111
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flow from finance leases	205	620
Operating cash flow from operating leases	381	1,111
Financing cash flows from finance leases	43	125
Total cash paid for amount included in measurement of lease liabilities	$ 629	$ 1,856