DERIVATIVE FINANCIAL INSTRUMENTS - Effect on statements of income (Details) - USD ($)	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
DERIVATIVE FINANCIAL INSTRUMENTS
Net unrealized (loss) gain on derivative instruments for interest rate swaps	$ 142,034	$ (165,887)
Interest Rate Swap | Designated as Hedging Instrument | Cash Flow Hedging
DERIVATIVE FINANCIAL INSTRUMENTS
Net unrealized (loss) gain on derivative instruments for interest rate swaps	$ 142,034	$ (165,887)
Derivative Instrument, Gain (Loss) Reclassified from AOCI into Income, Effective Portion, Statement of Income or Comprehensive Income [Extensible Enumeration]	Investment Income, Interest	Investment Income, Interest
Total Amount of Interest Expense presented in the consolidated statements of operations	$ (3,907,016)	$ (3,899,240)
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Interest Expense	Interest Expense