LINE OF CREDIT AND LONG-TERM DEBT - Outstanding Indebtedness and Respective Principal Maturities (Details) - USD ($)	Dec. 31, 2022	Dec. 31, 2014
Maturities of Long-term Debt [Abstract]
2023	$ 1,778,000
2024	1,866,000
2025	1,958,000
2026	2,055,000
2027	2,155,000
Thereafter	40,342,000
Total	$ 50,154,000
Term Notes
Debt Instrument [Line Items]
Stated Rate	4.62%
Maturities of Long-term Debt [Abstract]
Total	$ 48,462,000
Term Notes
Debt Instrument [Line Items]
Stated Rate	1.55%
Effective Rate	4.62%
Maturities of Long-term Debt [Abstract]
2023	$ 1,513,000
2024	1,589,000
2025	1,669,000
2026	1,753,000
2027	1,840,000
Thereafter	40,098,000
Total	48,462,000	$ 70,000,000
New RLOC
Debt Instrument [Line Items]
Face amount	40,000,000
Maturities of Long-term Debt [Abstract]
2023	0
2024	0
2025	0
2026	0
2027	0
Thereafter	0
Total	$ 0
Promissory note
Debt Instrument [Line Items]
Stated Rate	4.25%
Effective Rate	4.25%
Maturities of Long-term Debt [Abstract]
2023	$ 265,000
2024	277,000
2025	289,000
2026	302,000
2027	315,000
Thereafter	244,000
Total	$ 1,692,000

Face (par) amount of debt instrument at time of issuance.

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