CAPITAL RATIOS AND SHAREHOLDERS' EQUITY - Components of OCI (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Net unrealized gain (loss) arising during the period
Before Tax	$ 2,213	$ 2,896
Net of Tax	2,382	6,174
Less: reclassification adjustment for gains (losses) realized in net income
Net of Tax	103	0
Other comprehensive income (loss)
Before Tax	2,975	8,055
Tax Effect	(696)	(1,881)
Total other comprehensive income	2,279	6,174
Net unrealized gain on AFS securities
Net unrealized gain (loss) arising during the period
Before Tax	5,492	8,900
Tax Effect	(1,378)	(2,079)
Net of Tax	4,114	6,821
Less: reclassification adjustment for gains (losses) realized in net income
Before Tax	135
Tax Effect	(32)
Net of Tax	103	0
Other comprehensive income (loss)
Before Tax	5,357	8,900
Tax Effect	(1,346)	(2,079)
Total other comprehensive income	4,011	6,821
Net unrealized loss on effective hedging derivatives
Net unrealized gain (loss) arising during the period
Before Tax	(2,382)	(845)
Tax Effect	650	198
Net of Tax	(1,732)	(647)
Less: reclassification adjustment for gains (losses) realized in net income
Net of Tax	0	0
Other comprehensive income (loss)
Before Tax	(2,382)	(845)
Tax Effect	650	198
Total other comprehensive income	(1,732)	(647)
Net unrealized loss on post retirement
Net unrealized gain (loss) arising during the period
Net of Tax	0	0
Less: reclassification adjustment for gains (losses) realized in net income
Net of Tax	0	0
Other comprehensive income (loss)
Total other comprehensive income	$ 0	$ 0