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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Revenue recognition (Details) | 3 Months Ended | 9 Months Ended | 12 Months Ended
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Sep. 30, 2025 USD ($) | Sep. 30, 2024 USD ($) | Sep. 30, 2025 USD ($) item | Sep. 30, 2024 USD ($) | Dec. 31, 2024 USD ($)
Revenue recognition |  |  |  |  |
Estimated contractual allowances |  |  | $ 2,200,000 |  | $ 2,100,000
License revenue payable to patent owner, as a percent |  |  | 50.00% |  |
Sales, net | $ 10,085,723 | $ 10,346,857 | $ 28,826,629 | $ 23,975,584 |
Licensing fees |  |  |  |  |
Revenue recognition |  |  |  |  |
Sales, net | 0 | 38,000 | 0 | 227,000 |
Syringes |  |  |  |  |
Revenue recognition |  |  |  |  |
Sales, net | 5,847,758 | 5,172,823 | 18,736,426 | 16,942,054 |
Blood Collection Products |  |  |  |  |
Revenue recognition |  |  |  |  |
Sales, net | 372,751 | 298,716 | 1,019,361 | 1,143,670 |
EasyPoint Needles |  |  |  |  |
Revenue recognition |  |  |  |  |
Sales, net | 3,853,754 | 4,863,899 | 9,032,568 | 5,853,075 |
Other Products |  |  |  |  |
Revenue recognition |  |  |  |  |
Sales, net | 11,460 | 11,419 | 38,274 | 36,785 |
U.S. sales |  |  |  |  |
Revenue recognition |  |  |  |  |
Sales, net | 9,187,576 | 9,628,608 | 25,109,563 | 21,283,346 |
U.S. sales | Syringes |  |  |  |  |
Revenue recognition |  |  |  |  |
Sales, net | 5,508,018 | 4,470,036 | 16,506,288 | 14,655,118 |
U.S. sales | Blood Collection Products |  |  |  |  |
Revenue recognition |  |  |  |  |
Sales, net | 367,681 | 290,926 | 1,006,343 | 991,924 |
U.S. sales | EasyPoint Needles |  |  |  |  |
Revenue recognition |  |  |  |  |
Sales, net | 3,303,166 | 4,860,327 | 7,570,956 | 5,615,759 |
U.S. sales | Other Products |  |  |  |  |
Revenue recognition |  |  |  |  |
Sales, net | 8,711 | 7,319 | 25,976 | 20,545 |
North and South America sales (excluding U.S.) |  |  |  |  |
Revenue recognition |  |  |  |  |
Sales, net | 549,798 | 569,970 | 2,848,734 | 1,390,883 |
North and South America sales (excluding U.S.) | Syringes |  |  |  |  |
Revenue recognition |  |  |  |  |
Sales, net | 144,326 | 569,970 | 1,670,846 | 1,325,507 |
North and South America sales (excluding U.S.) | Blood Collection Products |  |  |  |  |
Revenue recognition |  |  |  |  |
Sales, net |  |  |  | 96 |
North and South America sales (excluding U.S.) | EasyPoint Needles |  |  |  |  |
Revenue recognition |  |  |  |  |
Sales, net | 405,472 |  | 1,177,888 | 59,040 |
North and South America sales (excluding U.S.) | Other Products |  |  |  |  |
Revenue recognition |  |  |  |  |
Sales, net |  |  |  | 6,240 |
Other international sales |  |  |  |  |
Revenue recognition |  |  |  |  |
Sales, net | 348,349 | 148,279 | 868,332 | 1,301,355 |
Other international sales | Syringes |  |  |  |  |
Revenue recognition |  |  |  |  |
Sales, net | 195,414 | 132,817 | 559,292 | 961,429 |
Other international sales | Blood Collection Products |  |  |  |  |
Revenue recognition |  |  |  |  |
Sales, net | 5,070 | 7,790 | 13,018 | 151,650 |
Other international sales | EasyPoint Needles |  |  |  |  |
Revenue recognition |  |  |  |  |
Sales, net | 145,116 | 3,572 | 283,724 | 178,276 |
Other international sales | Other Products |  |  |  |  |
Revenue recognition |  |  |  |  |
Sales, net | $ 2,749 | $ 4,100 | $ 12,298 | $ 10,000 |
U.S. |  |  |  |  |
Revenue recognition |  |  |  |  |
Period for return of incorrect domestic shipments |  |  | 10 days |  |
Number of times overstocking returns are limited | item |  |  | 2 |  |
Period for return of product due to overstock |  |  | 12 months |  |
Maximum percentage of distributor's total purchase for the prior 12-month period |  |  | 1.00% |  |

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