NONINTEREST INCOME AND NONINTEREST EXPENSE - Schedule of Other Nonoperating Income and Expenses (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Other Income, Nonoperating [Abstract]
Fiduciary and custodial income	$ 2,012	$ 1,760	$ 1,587
Bank-owned life insurance income	838	774	570
Merchant and debit card fees	5,515	4,264	3,642
Loan processing fee income	628	590	589
Warehouse lending fees	957	679	471
Mortgage fee income	771	323	283
Other noninterest income	2,418	2,029	2,303
Total	13,139	10,419	9,445
Other Expense, Nonoperating [Abstract]
Legal and professional fees	2,650	2,610	3,080
Software support fees	4,104	3,341	2,502
Amortization	1,349	1,378	1,228
Director and committee fees	846	873	1,029
Advertising and promotions	1,498	1,655	1,410
ATM and debit card expense	1,951	1,347	1,127
Office and computer supplies	645	470	416
Postage	268	302	310
Telecommunication expense	864	676	649
FDIC insurance assessment fees	821	173	625
Other real estate owned expenses and write-downs	77	59	157
Other noninterest expense	4,036	3,900	3,721
Total	$ 19,109	$ 16,784	$ 16,254