LEASES - Weighted average remaining lease (Details) $ in Thousands	3 Months Ended	6 Months Ended
	Mar. 31, 2020 USD ($)	Mar. 31, 2020 USD ($)
Cash flows included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 80	$ 138
Operating cash flows from finance leases	43	75
Finance cash flows from finance leases	42	79
Non-cash lease activity:
Right-of-use assets obtained in exchange for new operating lease liabilities	$ 71	$ 448
Operating lease, weighted-average remaining lease term (in years)	5 years 2 months 16 days	5 years 2 months 16 days
Finance lease, weighted-average remaining lease term (in years)	3 months 26 days	3 months 26 days
Operating lease, weighted-average discount rate (in percentages)	5.22%	5.22%
Finance lease, weighted-average discount rate (in percentages)	5.99%	5.99%