INVESTMENTS (Summary of Amortized Cost and Fair Value of Debt and Equity Securities) (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Debt securities - available-for-sale:
Amortized Cost of Cost	$ 269,100	$ 324,861
Debt securities, at fair value	270,217	327,532
Debt Securities
Debt securities - available-for-sale:
Amortized Cost of Cost	269,100	324,861
Gross Unrealized Gains	1,117	5,641
Gross Unrealized Losses	0	2,970
Debt securities, at fair value	270,217	327,532
United States government obligations and authorities
Debt securities - available-for-sale:
Amortized Cost of Cost	82,328	90,750
Gross Unrealized Gains	101	625
Gross Unrealized Losses	0	683
Debt securities, at fair value	82,429	90,692
Obligations of states and political subdivisions
Debt securities - available-for-sale:
Amortized Cost of Cost	15,547	19,031
Gross Unrealized Gains	31	391
Gross Unrealized Losses	0	144
Debt securities, at fair value	15,578	19,278
Corporate securities
Debt securities - available-for-sale:
Amortized Cost of Cost	148,648	186,489
Gross Unrealized Gains	960	4,413
Gross Unrealized Losses	0	1,922
Debt securities, at fair value	149,608	188,980
International securities
Debt securities - available-for-sale:
Amortized Cost of Cost	22,577	28,591
Gross Unrealized Gains	25	212
Gross Unrealized Losses	0	221
Debt securities, at fair value	$ 22,602	$ 28,582

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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Amount, before tax, of unrealized loss 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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Amortized cost of 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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Amount of 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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