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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Revenue recognition (Details) | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2021 USD ($) | Sep. 30, 2020 USD ($) | Sep. 30, 2021 USD ($) item | Sep. 30, 2020 USD ($) | Dec. 31, 2020 USD ($)
Revenue recognition |  |  |  |  |
Estimated contractual allowance |  |  | $ 5,304,885 |  | $ 3,435,352
Period for return of incorrect 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% |  |
Sales, net | $ 36,356,047 | $ 27,091,064 | $ 128,926,716 | $ 49,867,126 |
Syringes |  |  |  |  |
Revenue recognition |  |  |  |  |
Sales, net | 31,513,599 | 22,632,761 | 119,371,010 | 41,045,100 |
Blood Collection Products |  |  |  |  |
Revenue recognition |  |  |  |  |
Sales, net | 565,765 | 865,430 | 1,659,231 | 1,692,863 |
Easy Point Needles |  |  |  |  |
Revenue recognition |  |  |  |  |
Sales, net | 4,264,684 | 3,581,958 | 7,743,240 | 6,006,026 |
Other Products |  |  |  |  |
Revenue recognition |  |  |  |  |
Sales, net | 11,999 | 10,915 | 153,235 | 1,123,137 |
Department of health and human |  |  |  |  |
Revenue recognition |  |  |  |  |
Sales, net |  |  | 83,600,000 |  |
U.S. |  |  |  |  |
Revenue recognition |  |  |  |  |
Sales, net | 15,653,047 | 12,624,055 | 39,336,134 | 29,203,105 |
U.S. | Syringes |  |  |  |  |
Revenue recognition |  |  |  |  |
Sales, net | 11,033,291 | 8,241,161 | 30,685,338 | 21,538,941 |
U.S. | Blood Collection Products |  |  |  |  |
Revenue recognition |  |  |  |  |
Sales, net | 560,065 | 791,961 | 1,590,891 | 1,607,804 |
U.S. | Easy Point Needles |  |  |  |  |
Revenue recognition |  |  |  |  |
Sales, net | 4,048,292 | 3,581,723 | 7,019,560 | 6,004,295 |
U.S. | Other Products |  |  |  |  |
Revenue recognition |  |  |  |  |
Sales, net | 11,399 | 9,210 | 40,345 | 52,065 |
U.S. government |  |  |  |  |
Revenue recognition |  |  |  |  |
Sales, net | 18,420,480 | 12,898,080 | 83,560,680 | 14,065,623 |
U.S. government | Syringes |  |  |  |  |
Revenue recognition |  |  |  |  |
Sales, net | 18,420,480 | 12,898,080 | 83,560,680 | 14,065,623 |
North and South America sales (excluding U.S.) |  |  |  |  |
Revenue recognition |  |  |  |  |
Sales, net | 701,802 | 1,295,530 | 3,161,418 | 5,985,820 |
North and South America sales (excluding U.S.) | Syringes |  |  |  |  |
Revenue recognition |  |  |  |  |
Sales, net | 670,602 | 1,295,080 | 2,963,930 | 4,911,106 |
North and South America sales (excluding U.S.) | Blood Collection Products |  |  |  |  |
Revenue recognition |  |  |  |  |
Sales, net | 4,800 | 450 | 4,800 | 8,450 |
North and South America sales (excluding U.S.) | Easy Point Needles |  |  |  |  |
Revenue recognition |  |  |  |  |
Sales, net | 26,400 |  | 83,248 | 1,496 |
North and South America sales (excluding U.S.) | Other Products |  |  |  |  |
Revenue recognition |  |  |  |  |
Sales, net |  |  | 109,440 | 1,064,768 |
Other international sales |  |  |  |  |
Revenue recognition |  |  |  |  |
Sales, net | 1,580,718 | 273,399 | 2,868,484 | 612,578 |
Other international sales | Syringes |  |  |  |  |
Revenue recognition |  |  |  |  |
Sales, net | 1,389,226 | 198,440 | 2,161,062 | 529,430 |
Other international sales | Blood Collection Products |  |  |  |  |
Revenue recognition |  |  |  |  |
Sales, net | 900 | 73,019 | 63,540 | 76,609 |
Other international sales | Easy Point Needles |  |  |  |  |
Revenue recognition |  |  |  |  |
Sales, net | 189,992 | 235 | 640,432 | 235 |
Other international sales | Other Products |  |  |  |  |
Revenue recognition |  |  |  |  |
Sales, net | $ 600 | $ 1,705 | $ 3,450 | $ 6,304 |

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