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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Concentration risks (Details)			12 Months Ended
	Feb. 04, 2025	Sep. 13, 2024	Dec. 31, 2024 USD ($) customer	Dec. 31, 2023 USD ($) customer	Dec. 31, 2022 USD ($) customer
Concentration risks
Aggregate dollar amount of net sales			$ 33,049,533	$ 43,596,926	$ 94,818,938
Syringes and needles | China
Concentration risks
Tariff percentage		100.00%
Other products
Concentration risks
Aggregate dollar amount of net sales			$ 45,852	$ 266,273	$ 451,950
Other products | China | Forecast
Concentration risks
Tariff percentage	20.00%
Net Sales | Customer Concentration Risk
Concentration risks
Number of significant customers | customer			3	4	4
Aggregate dollar amount of net sales			$ 17,800,000	$ 25,900,000	$ 66,400,000
Net Sales | Customer Concentration Risk | Significant customers
Concentration risks
Percentage of net sales to significant customers			53.80%	61.30%	70.00%
Cost of Sales, Manufacturing | Supplier Concentration Risk | China
Concentration risks
Percentage of net sales to significant customers			83.90%	88.40%	91.60%

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