LEASES - Finance Leases, Future Minimum Payments (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Finance Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2019 (excluding the three months ended March 31, 2019)	$ 375
2019		$ 583
2020	500	500
2021	504	504
2022	524	524
2023	525	525
Thereafter	5,631	5,631
Total minimum lease payments	8,059	8,267
Less: Interest	(2,747)	(2,911)
Present value of lease liabilities	$ 5,312	$ 5,356