3. Segment Information and Concentrations (Details) - USD ($)	3 Months Ended		9 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2017	Mar. 31, 2016
Depreciation and Amortization			$ 276,500	$ 319,100
Benchtop Laboratory Equipment [Member]
Revenues	$ 1,410,800	$ 1,279,300	4,334,400	4,125,900
Foreign Sales	611,400	597,300	1,924,400	1,960,700
Income (Loss) from Operations	88,900	2,800	252,900	245,200
Assets	4,170,900	4,358,700	4,170,900	4,358,700
Long-lived Asset Expenditures	4,600	31,500	18,200	39,900
Depreciation and Amortization	73,500	74,800	226,800	222,800
Catalyst Research Instruments [Member]
Revenues	359,800	364,900	1,629,400	932,300
Foreign Sales	37,100	25,900	52,200	139,200
Income (Loss) from Operations	(82,400)	5,500	(197,400)	(86,700)
Assets	1,822,200	2,898,400	1,822,200	2,898,400
Long-lived Asset Expenditures	0	3,200	0	3,200
Depreciation and Amortization	1,600	9,000	12,700	22,900
Bioprocessing Systems [Member]
Revenues	140,300	30,100	190,000	88,700
Foreign Sales	0	0	0	0
Income (Loss) from Operations	76,500	(29,600)	9,100	(92,500)
Assets	485,700	746,200	485,700	746,200
Long-lived Asset Expenditures	7,000	3,700	12,800	9,400
Depreciation and Amortization	12,000	24,500	37,000	73,400
Corporate and Other [Member]
Revenues	0	0	0	0
Foreign Sales	0	0	0	0
Income (Loss) from Operations	0	(13,800)	0	(35,900)
Assets	719,200	595,000	719,200	595,000
Long-lived Asset Expenditures	0	0	0	0
Depreciation and Amortization	0	0	0	0
Consolidated [Member]
Revenues	1,910,900	1,674,300	6,153,800	5,146,900
Foreign Sales	648,500	623,200	1,976,600	2,099,900
Income (Loss) from Operations	83,000	(35,100)	64,600	30,100
Assets	7,198,000	8,598,300	7,198,000	8,598,300
Long-lived Asset Expenditures	11,600	38,400	31,000	52,500
Depreciation and Amortization	$ 87,100	$ 108,300	$ 276,500	$ 319,100