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INVESTMENT SECURITIES (Details Narrative) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Marketable Securities [Line Items]
Debt Securities, Available-for-sale		$ 359,866
Federal Home Loan Bank Stock		1,100	$ 991,400
Available-for-sale Securities, Gross Unrealized Gain	$ 124,300	14,554	4,153
Available-for-sale Securities, Gross Realized Gains		99,100	355,600
Available-for-sale Securities, Gross Realized Losses			219,600
[custom:SecurityOwnedAndPledgedAsCollateralAmortizedCost-0]		155,000	138,600
Security Owned and Pledged as Collateral, Fair Value		161,500	139,300
Corporate Fixed To Float Bonds [Member]
Marketable Securities [Line Items]
Debt Securities, Available-for-sale		3,300
Mutual Funds [Member]
Marketable Securities [Line Items]
Debt Securities, Available-for-sale		8,000	8,800
Debt Security, Corporate, Non-US [Member]
Marketable Securities [Line Items]
Debt Securities, Available-for-sale		10,000	10,000
Corporate Bond Securities [Member]
Marketable Securities [Line Items]
Debt Securities, Available-for-sale		1,000	1,000
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Marketable Securities [Line Items]
Available-for-sale Securities, Gross Unrealized Gain		7,375	1,490
[custom:SecurityOwnedAndPledgedAsCollateralAmortizedCost-0]		257,300	182,700
Security Owned and Pledged as Collateral, Fair Value		265,400	183,600
Mortgage-backed Securities, Issued by Private Enterprises [Member]
Marketable Securities [Line Items]
[custom:SecurityOwnedAndPledgedAsCollateralAmortizedCost-0]		57,400	73,500
Security Owned and Pledged as Collateral, Fair Value		$ 54,700	$ 73,500

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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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Federal Home Loan Bank (FHLB) stock represents an equity interest in a FHLB. It does not have a readily determinable fair value because its ownership is restricted and it lacks a market (liquidity).

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