LEASES - Maturities of Lease Liabilities (Details) $ in Thousands	Sep. 30, 2019 USD ($)
Operating Leases
Remainder of 2020	$ 1,259
2021	1,361
2022	1,379
2023	1,400
2024	998
Thereafter	1,520
Total lease payments	7,917
Less: Imputed interest	1,396
Present value of lease liabilities	6,521
Finance Leases
Remainder of 2020	79
2021	41
2022	12
2023	1
2024	1
Thereafter	0
Total lease payments	134
Less: Imputed interest	19
Present value of lease liabilities	$ 115