RIGHT OF USE ASSET AND LEASE LIABILITY - Narrative (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019 USD ($) branch	Mar. 31, 2018 USD ($)	Jan. 01, 2019 USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Branch office leases with renew options | branch	6
Right-of-use assets, net	$ 2,564
Incremental borrowing rate	2.59%
Operating lease liability	$ 3,017
Weighted average remaining lease term	6 years 2 months 12 days
Lease cost	$ 221
Operating lease cost	123
Short term lease cost	98
Rent expense		$ 166
Cash paid on operating leases	240
Lease not commenced	$ 1,800
Operating lease term	7 years
Lease liability	$ 2,568
Accounting Standards Update 2016-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Right-of-use assets, net			$ 2,700
Operating lease liability			$ 2,700