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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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