3. Segment Information and Concentrations (Details) - USD ($)	3 Months Ended		6 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Depreciation and Amortization			$ 189,500	$ 210,800
Benchtop Laboratory Equipment [Member]
Revenues	$ 1,466,800	$ 1,583,500	2,923,600	2,846,500
Foreign Sales	751,800	764,400	1,313,000	1,363,400
Income (Loss) from Operations	62,600	187,700	164,000	242,400
Assets	4,131,400	4,352,600	4,131,400	4,352,600
Long-lived Asset Expenditures	5,200	1,900	13,600	8,400
Depreciation and Amortization	76,700	74,200	153,400	148,000
Catalyst Research Instruments [Member]
Revenues	1,192,100	414,500	1,269,600	567,500
Foreign Sales	10,300	105,500	15,100	113,300
Income (Loss) from Operations	26,600	(10,100)	(115,000)	(92,200)
Assets	1,982,800	2,319,200	1,982,800	2,319,200
Long-lived Asset Expenditures	0	0	0	0
Depreciation and Amortization	4,500	7,000	11,100	13,900
Bioprocessing Systems [Member]
Revenues	24,900	30,200	49,700	58,600
Foreign Sales	0	0	0	0
Income (Loss) from Operations	(32,700)	(32,900)	(67,400)	(62,900)
Assets	434,700	728,800	434,700	728,800
Long-lived Asset Expenditures	5,800	5,700	5,800	5,700
Depreciation and Amortization	12,600	24,400	25,000	48,900
Corporate and Other [Member]
Revenues	0	0	0	0
Foreign Sales	0	0	0	0
Income (Loss) from Operations	0	(14,000)	0	(22,100)
Assets	695,900	578,300	695,900	578,300
Long-lived Asset Expenditures	0	0	0	0
Depreciation and Amortization	0	0	0	0
Consolidated [Member]
Revenues	2,683,800	2,028,200	4,242,900	3,472,600
Foreign Sales	762,100	869,900	1,328,100	1,476,700
Income (Loss) from Operations	56,500	130,700	(18,400)	65,200
Assets	7,244,800	7,978,900	7,244,800	7,978,900
Long-lived Asset Expenditures	11,000	7,600	19,400	14,100
Depreciation and Amortization	$ 93,800	$ 105,600	$ 189,500	$ 210,800