4. Segment Information and Concentrations (Details) (USD $)	3 Months Ended		6 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012	Dec. 31, 2011
Depreciation and Amortization			$ 89,000	$ 99,300
Benchtop Laboratory Equipment [Member]
Net Sales	1,164,900	1,108,500	2,229,700	2,183,600
Foreign Sales	747,900	755,100	1,369,600	1,363,700
Profit (Loss)	157,200	100,200	274,800	260,600
Assets	2,485,700	2,467,600	2,485,700	2,467,600
Long-lived Asset Expenditures	7,100	4,500	9,200	14,000
Depreciation and Amortization	11,500	12,300	22,600	24,300
Catalyst Research Instruments [Member]
Net Sales	664,900	89,100	949,200	554,900
Foreign Sales	279,800	8,400	519,000	121,100
Profit (Loss)	68,200	(117,800)	(66,100)	(176,400)
Assets	1,695,400	1,375,700	1,695,400	1,375,700
Long-lived Asset Expenditures	700	2,800	18,100	49,500
Depreciation and Amortization	9,200	27,800	18,500	63,000
Bioprocessing Systems [Member]
Net Sales	47,100		49,700
Foreign Sales
Profit (Loss)	(30,900)	(32,300)	(105,900)	(32,300)
Assets	963,100	866,600	963,100	866,600
Long-lived Asset Expenditures		876,000		876,000
Depreciation and Amortization	24,000	12,000	47,900	12,000
Corporate and Other [Member]
Net Sales
Foreign Sales
Profit (Loss)		(33,600)		(58,200)
Assets	915,800	1,481,800	915,800	1,481,800
Long-lived Asset Expenditures
Depreciation and Amortization
Consolidated [Member]
Net Sales	1,876,900	1,197,600	3,228,600	2,738,500
Foreign Sales	1,027,700	763,500	1,888,600	1,484,800
Profit (Loss)	194,500	(83,500)	102,800	(6,300)
Assets	6,060,000	6,191,700	6,060,000	6,191,700
Long-lived Asset Expenditures	7,800	883,300	27,300	939,500
Depreciation and Amortization	$ 44,700	$ 52,100	$ 89,000	$ 99,300