INVESTMENT SECURITIES - Tabular Disclosure (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Debt Securities, Trading, and Equity Securities, FV-NI [Abstract]
Cost	$ 38,984	$ 38,896
Unrealized Gains in Investment Income		2,141
Unrealized Losses in Investment Income	(397)
Estimated Fair Value (Level 1 Inputs)	38,587	41,037
Common Stock
Debt Securities, Trading, and Equity Securities, FV-NI [Abstract]
Cost	15,731	15,643
Unrealized Gains in Investment Income		868
Unrealized Losses in Investment Income	(152)
Estimated Fair Value (Level 1 Inputs)	15,579	16,511
Operating Units
Debt Securities, Trading, and Equity Securities, FV-NI [Abstract]
Cost	23,253	23,253
Unrealized Gains in Investment Income		1,273
Unrealized Losses in Investment Income	(245)
Estimated Fair Value (Level 1 Inputs)	$ 23,008	$ 24,526

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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