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SECURITIES - Available-for-sale Securities (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Available-for-sale Securities
Available-for-sale securities, amortized cost	$ 429,883	$ 334,552
Available-for-sale securities, gross unrealized holding gains	10,393	14,849
Available-for-sale securities, gross unrealized holding losses	(2,419)	(69)
Available-for-sale debt securities, fair value	437,857	349,332
Obligations of the U.S. Treasury
Available-for-sale Securities
Available-for-sale securities, amortized cost	25,088	12,184
Available-for-sale securities, gross unrealized holding gains	60	0
Available-for-sale securities, gross unrealized holding losses	(80)	(2)
Available-for-sale debt securities, fair value	25,068	12,182
Obligations of U.S. Government agencies
Available-for-sale Securities
Available-for-sale securities, amortized cost	23,935	25,349
Available-for-sale securities, gross unrealized holding gains	666	1,003
Available-for-sale securities, gross unrealized holding losses	(289)	(8)
Available-for-sale debt securities, fair value	24,312	26,344
Obligations Of States And Political Subdivisions Tax Exempt
Available-for-sale Securities
Available-for-sale securities, amortized cost	135,362	116,427
Available-for-sale securities, gross unrealized holding gains	4,390	6,000
Available-for-sale securities, gross unrealized holding losses	(508)	(26)
Available-for-sale debt securities, fair value	139,244	122,401
Obligations Of States And Political Subdivisions Taxable
Available-for-sale Securities
Available-for-sale securities, amortized cost	69,426	45,230
Available-for-sale securities, gross unrealized holding gains	1,516	2,246
Available-for-sale securities, gross unrealized holding losses	(449)	(24)
Available-for-sale debt securities, fair value	70,493	47,452
Residential Passthrough Securities
Available-for-sale Securities
Available-for-sale securities, amortized cost	59,920	36,853
Available-for-sale securities, gross unrealized holding gains	978	1,323
Available-for-sale securities, gross unrealized holding losses	(269)	0
Available-for-sale debt securities, fair value	60,629	38,176
Residential Collateralized Mortgage Obligations
Available-for-sale Securities
Available-for-sale securities, amortized cost	43,811	56,048
Available-for-sale securities, gross unrealized holding gains	820	1,428
Available-for-sale securities, gross unrealized holding losses	(38)	(9)
Available-for-sale debt securities, fair value	44,593	57,467
Commercial Mortgage Backed Securities
Available-for-sale Securities
Available-for-sale securities, amortized cost	72,341	42,461
Available-for-sale securities, gross unrealized holding gains	1,963	2,849
Available-for-sale securities, gross unrealized holding losses	(786)	0
Available-for-sale debt securities, fair value	$ 73,518	$ 45,310

X

- Definition

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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