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FAIR VALUE MEASUREMENTS - Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Fair Value | Level 1 | US Treasury Notes
Receivables, Fair Value Disclosure [Abstract]
Debt securities	$ 8,448	$ 8,409
Fair Value | Level 2 | Consumer Loan
Receivables, Fair Value Disclosure [Abstract]
Loans	140,900	138,800
Fair Value | Level 2 | Notes Receivable from Mobile Home Parks
Receivables, Fair Value Disclosure [Abstract]
Notes receivable	143,500	128,400
Fair Value | Level 2 | Other Note Receivable
Receivables, Fair Value Disclosure [Abstract]
Notes receivable	24,400	21,600
Book Value | US Treasury Notes
Receivables, Fair Value Disclosure [Abstract]
Debt securities	8,452	8,412
Book Value | Consumer Loan
Receivables, Fair Value Disclosure [Abstract]
Loans	141,316	139,009
Book Value | Notes Receivable from Mobile Home Parks
Receivables, Fair Value Disclosure [Abstract]
Notes receivable	145,333	129,966
Book Value | Other Note Receivable
Receivables, Fair Value Disclosure [Abstract]
Notes receivable	$ 24,972	$ 22,722

X

- Definition

Fair value of investment in debt security measured at amortized cost (held-to-maturity).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 5
-Subparagraph (aa)
-URI http://asc.fasb.org/extlink&oid=123581744&loc=d3e27232-111563

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(6))
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 5A
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123581744&loc=SL120269820-111563

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- Definition

Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-URI http://asc.fasb.org/subtopic&trid=2196772

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X

- Definition

Fair value portion of an agreement for an unconditional promise by the maker to pay the holder a definite sum of money at a future date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.3(b))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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