LEASES - Maturities of lease liabilities (Details) $ in Thousands	Mar. 31, 2019 USD ($)
Operating Leases
Remaining 2019	$ 671
2020	858
2021	722
2022	726
2023	738
Thereafter	3,380
Total lease payments	7,095
Less: Interest	(1,471)
Present value of lease liabilities	5,624
Finance Leases
Remaining 2019	320
2020	398
2021	398
2022	223
2023	2
Total lease payments	1,341
Less: Interest	(118)
Present value of lease liabilities	1,223
Operating and Financing Leases
Remaining 2019	991
2020	1,256
2021	1,120
2022	949
2023	740
Thereafter	3,380
Total lease payments	8,436
Less: Interest	(1,589)
Present value of lease liabilities	$ 6,847