Segment Information and Concentration (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Revenues	$ 2,647,300	$ 2,982,500	$ 5,130,800	$ 5,787,900
Income (Loss) from Operations			3,335,200	4,662,500
Bioprocessing Systems
Revenues	365,400	368,200	681,500	591,400
Foreign Sales	205,700	139,900	406,200	235,800
Income (Loss) from Operations	(1,292,900)	(1,794,600)	(2,894,700)	(3,867,100)
Assets	4,754,300	5,332,400	4,754,300	5,332,400
Long-lived Asset Expenditures	600	43,400	2,300	81,000
Depreciation and Amortization	167,800	170,200	334,500	334,800
Benchtop Laboratory Equipment
Revenues	2,281,900	2,614,300	4,449,300	5,196,500
Foreign Sales	629,800	723,200	1,284,900	1,579,800
Income (Loss) from Operations	214,500	215,400	287,300	481,600
Assets	6,224,600	7,023,400	6,224,600	7,023,400
Long-lived Asset Expenditures	24,100	17,000	69,900	25,200
Depreciation and Amortization	21,400	20,400	42,800	43,700
Corporate
Revenues	0	0	0	0
Foreign Sales		0	0
Income (Loss) from Operations	(257,800)	(647,000)	(818,300)	(1,308,300)
Assets	3,295,100	1,844,100	3,295,100	1,844,100
Long-lived Asset Expenditures	0	0	0	0
Depreciation and Amortization	0	0	0	0
Consolidated
Revenues	2,647,300	2,982,500	5,130,800	5,787,900
Foreign Sales	835,500	863,100	1,691,100	1,815,600
Income (Loss) from Operations	(1,336,200)	(2,226,200)	(3,425,700)	(4,693,800)
Assets	14,274,000	14,199,900	14,274,000	14,199,900
Long-lived Asset Expenditures	24,700	60,400	72,200	106,200
Depreciation and Amortization	$ 189,200	$ 190,600	$ 377,300	$ 378,500