DERIVATIVE FINANCIAL INSTRUMENTS - Effect on statements of income (Details) - USD ($)	3 Months Ended
Mar. 31, 2025	Mar. 31, 2024
DERIVATIVE FINANCIAL INSTRUMENTS
Net unrealized (loss) gain on derivative instruments for interest rate swaps	$ (129,890)	$ 142,034
Interest Rate Swap \| Designated as Hedging Instrument \| Cash Flow Hedging
DERIVATIVE FINANCIAL INSTRUMENTS
Net unrealized (loss) gain on derivative instruments for interest rate swaps	(129,890)	142,034
Total Amount of Interest Expense presented in the consolidated statements of operations	$ (3,791,432)	$ (3,907,016)
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Investment Income, Interest	Investment Income, Interest

Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4A
-Subparagraph (b)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480434/815-10-50-4A

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Indicates line item in statement of income or comprehensive income that includes gain (loss) from derivative.

+ References

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4E
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480434/815-10-50-4E

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Amount, after tax and reclassification, of gain (loss) from derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness, attributable to parent.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 11
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482790/220-10-45-11

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