SECURITIES - Summary of Available For Sale Securities With Unrealized And Unrecognized Losses (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Schedule of Trading Securities and Other Trading Assets [Line Items]
Fair value, Less than 12 Months	$ 62,339	$ 99,545
Fair Value, 12 Months or Longer	3,973	26,009
Fair Value, Total	66,312	125,554
Unrealized Losses, Less than 12 Months	444	713
Unrealized Losses, 12 Months or Longer	41	210
Unrealized Losses, Total	485	923
U.S Treasury
Schedule of Trading Securities and Other Trading Assets [Line Items]
Fair value, Less than 12 Months	0	4,894
Fair Value, 12 Months or Longer	0	0
Fair Value, Total	0	4,894
Unrealized Losses, Less than 12 Months	0	73
Unrealized Losses, 12 Months or Longer	0	0
Unrealized Losses, Total	0	73
Obligations of U.S. government agencies and sponsored entities
Schedule of Trading Securities and Other Trading Assets [Line Items]
Fair value, Less than 12 Months	6,593	22,987
Fair Value, 12 Months or Longer	326	0
Fair Value, Total	6,919	22,987
Unrealized Losses, Less than 12 Months	65	224
Unrealized Losses, 12 Months or Longer	2	0
Unrealized Losses, Total	67	224
Tax-exempt and taxable obligations of states and municipal subdivisions
Schedule of Trading Securities and Other Trading Assets [Line Items]
Fair value, Less than 12 Months	10,193	27,913
Fair Value, 12 Months or Longer	0	322
Fair Value, Total	10,193	28,235
Unrealized Losses, Less than 12 Months	300	146
Unrealized Losses, 12 Months or Longer	0	1
Unrealized Losses, Total	300	147
Mortgage-backed securities - residential
Schedule of Trading Securities and Other Trading Assets [Line Items]
Fair value, Less than 12 Months	30,202	22,328
Fair Value, 12 Months or Longer	11	7,602
Fair Value, Total	30,213	29,930
Unrealized Losses, Less than 12 Months	42	55
Unrealized Losses, 12 Months or Longer	0	52
Unrealized Losses, Total	42	107
Mortgage-backed securities - commercial
Schedule of Trading Securities and Other Trading Assets [Line Items]
Fair value, Less than 12 Months	10,134	10,787
Fair Value, 12 Months or Longer	3,596	17,649
Fair Value, Total	13,730	28,436
Unrealized Losses, Less than 12 Months	29	166
Unrealized Losses, 12 Months or Longer	31	57
Unrealized Losses, Total	60	223
Corporate obligations
Schedule of Trading Securities and Other Trading Assets [Line Items]
Fair value, Less than 12 Months	5,217	10,636
Fair Value, 12 Months or Longer	40	436
Fair Value, Total	5,257	11,072
Unrealized Losses, Less than 12 Months	8	49
Unrealized Losses, 12 Months or Longer	8	100
Unrealized Losses, Total	$ 16	$ 149