SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Principles of consolidation and Basis of presentation (Details) - USD ($)	Jun. 30, 2025	Dec. 31, 2024
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Assets	$ 116,648,221	$ 120,612,058
Liabilities	48,755,725	39,213,553
Variable Interest Entity
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Assets	116,500,000	119,300,000
Liabilities	$ 45,400,000	$ 36,700,000

Amount of asset recognized for present right to economic benefit.

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- Definition

Amount of liability recognized for present obligation requiring transfer or otherwise providing economic benefit to others.

+ References

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