INVESTMENT SECURITIES - Tabular Disclosure (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Debt Securities, Trading, and Equity Securities, FV-NI [Abstract]
Cost	$ 38,896	$ 38,753
Unrealized Gains inInvestment Income	2,141
Unrealized Losses in Investment Income		(8,179)
Estimated Fair Value (Level 1 Inputs)	41,037	30,574
Common Stock
Debt Securities, Trading, and Equity Securities, FV-NI [Abstract]
Cost	15,643	15,500
Unrealized Gains inInvestment Income	868
Unrealized Losses in Investment Income		(3,271)
Estimated Fair Value (Level 1 Inputs)	16,511	12,229
Operating Units
Debt Securities, Trading, and Equity Securities, FV-NI [Abstract]
Cost	23,253	23,253
Unrealized Gains inInvestment Income	1,273
Unrealized Losses in Investment Income		(4,908)
Estimated Fair Value (Level 1 Inputs)	$ 24,526	$ 18,345

Equity Securities, FV-NI, Accumulated Gross Unrealized Gain, before Tax

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Equity Securities, FV-NI, Accumulated Gross Unrealized Loss, before Tax

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Cost of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI). Excludes equity method investment and investment in equity security without readily determinable fair value.

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Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 45
-Paragraph 1A
-URI http://asc.fasb.org/extlink&oid=123594786&loc=SL75136599-209740

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