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INVESTMENT SECURITIES (Schedule of Amortized Cost and Approximate Fair Value of Securities Available for Sale) (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Securities Available for Sale:
Amortized Cost	$ 824,409	$ 841,472
Gross Unrealized Gains	890	3,801
Gross Unrealized Losses	(72,859)	(71,070)
Fair Value	752,440	774,203
Securities Held to Maturity:
Amortized Cost	78,560	95,862
Gross Unrealized Gains	0	23
Gross Unrealized Losses	(8,680)	(8,394)
Fair Value	69,880	87,491
U.S. Treasuries [Member]
Securities Available for Sale:
Amortized Cost	9,944
Gross Unrealized Gains	7
Gross Unrealized Losses	(1)
Fair Value	9,950
U.S. Government-Sponsored Agencies [Member]
Securities Available for Sale:
Amortized Cost	219,842	244,833
Gross Unrealized Losses	(33,524)	(33,610)
Fair Value	186,318	211,223
Securities Held to Maturity:
Amortized Cost	25,000	40,000
Gross Unrealized Losses	(1,083)	(1,125)
Fair Value	23,917	38,875
Mortgage-Backed Securities-Residential [Member]
Securities Available for Sale:
Amortized Cost	563,730	561,794
Gross Unrealized Gains	621	3,551
Gross Unrealized Losses	(36,905)	(34,980)
Fair Value	527,446	530,365
Securities Held to Maturity:
Amortized Cost	53,560	55,862
Gross Unrealized Gains	0	23
Gross Unrealized Losses	(7,597)	(7,269)
Fair Value	45,963	48,616
SBA Pool Securities [Member]
Securities Available for Sale:
Amortized Cost	17,893	19,345
Gross Unrealized Losses	(2,240)	(2,133)
Fair Value	15,653	17,212
Corporate Bond [Member]
Securities Available for Sale:
Amortized Cost	13,000	15,500
Gross Unrealized Gains	262	250
Gross Unrealized Losses	(189)	(347)
Fair Value	$ 13,073	$ 15,403

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