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SECURITIES - Available-for-sale Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Available-for-sale Securities
Available-for-sale securities, amortized cost	$ 357,710	$ 334,552
Available-for-sale securities, gross unrealized holding gains	10,903	14,849
Available-for-sale securities, gross unrealized holding losses	(2,237)	(69)
Total, fair value	366,376	349,332
Obligations of the U.S. Treasury
Available-for-sale Securities
Available-for-sale securities, amortized cost	15,117	12,184
Available-for-sale securities, gross unrealized holding gains	2	0
Available-for-sale securities, gross unrealized holding losses	(34)	(2)
Total, fair value	15,085	12,182
Obligations of U.S. Government agencies
Available-for-sale Securities
Available-for-sale securities, amortized cost	24,763	25,349
Available-for-sale securities, gross unrealized holding gains	670	1,003
Available-for-sale securities, gross unrealized holding losses	(441)	(8)
Total, fair value	24,992	26,344
Obligations Of States And Political Subdivisions Tax Exempt
Available-for-sale Securities
Available-for-sale securities, amortized cost	120,974	116,427
Available-for-sale securities, gross unrealized holding gains	4,487	6,000
Available-for-sale securities, gross unrealized holding losses	(343)	(26)
Total, fair value	125,118	122,401
Obligations Of States And Political Subdivisions Taxable
Available-for-sale Securities
Available-for-sale securities, amortized cost	51,823	45,230
Available-for-sale securities, gross unrealized holding gains	1,397	2,246
Available-for-sale securities, gross unrealized holding losses	(682)	(24)
Total, fair value	52,538	47,452
Residential Passthrough Securities
Available-for-sale Securities
Available-for-sale securities, amortized cost	38,790	36,853
Available-for-sale securities, gross unrealized holding gains	1,099	1,323
Available-for-sale securities, gross unrealized holding losses	(132)	0
Total, fair value	39,757	38,176
Residential Collateralized Mortgage Obligations
Available-for-sale Securities
Available-for-sale securities, amortized cost	52,715	56,048
Available-for-sale securities, gross unrealized holding gains	1,299	1,428
Available-for-sale securities, gross unrealized holding losses	(43)	(9)
Total, fair value	53,971	57,467
Commercial Mortgage Backed Securities
Available-for-sale Securities
Available-for-sale securities, amortized cost	53,528	42,461
Available-for-sale securities, gross unrealized holding gains	1,949	2,849
Available-for-sale securities, gross unrealized holding losses	(562)	0
Total, fair value	$ 54,915	$ 45,310

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- 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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