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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Concentration risks (Details)
3 Months Ended 6 Months Ended
May 14, 2024
Jun. 30, 2024
USD ($)
customer
Jun. 30, 2023
USD ($)
customer
Jun. 30, 2024
USD ($)
customer
Jun. 30, 2023
USD ($)
customer
Concentration risks          
Aggregate dollar amount of net sales   $ 6,029,364 $ 7,971,280 $ 13,628,727 $ 18,972,382
Net Sales | Customer Concentration Risk          
Concentration risks          
Number of significant customers | customer   4 3 3 3
Net Sales | Customer Concentration Risk | China          
Concentration risks          
Percentage of net sales to significant customers       91.00%  
Net Sales | Customer Concentration Risk | Significant customers          
Concentration risks          
Aggregate dollar amount of net sales   $ 3,800,000 $ 4,400,000 $ 7,300,000 $ 10,200,000
Percentage of net sales to significant customers   63.00% 55.00% 53.60% 53.90%
Cost of Sales, Manufacturing | Supplier Concentration Risk | China          
Concentration risks          
Percentage of net sales to significant customers   92.00% 84.00% 91.00% 89.00%
Percentage increase in tariffs for syringes and needles 50.00%