3. Segment Information and Concentrations (Details) (USD $)	12 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Depreciation and Amortization	$ 185,900	$ 188,400
Benchtop Laboratory Equipment
Net Sales	4,160,500	4,525,100
Foreign Sales	2,505,300	2,496,200
Profit (Loss)	416,800	584,400
Assets	2,366,100	2,501,000
Long-lived Asset Expenditures	30,700	39,300
Depreciation and Amortization	49,300	56,000
Catalyst Research Instruments
Net Sales	1,940,900	1,344,700
Foreign Sales	884,000	663,900
Profit (Loss)	(190,400)	(313,600)
Assets	1,083,400	1,177,400
Long-lived Asset Expenditures	49,500	24,300
Depreciation and Amortization	76,700	132,400
Bioprocessing Systems
Net Sales	101,200
Foreign Sales	3,600
Profit (Loss)	(111,200)
Assets	822,800
Long-lived Asset Expenditures	1,018,000
Depreciation and Amortization	59,900
Corporate and Other
Net Sales
Foreign Sales
Profit (Loss)	(78,500)
Assets	1,499,900	1,334,800
Long-lived Asset Expenditures
Depreciation and Amortization
Consolidated
Net Sales	6,202,600	5,869,800
Foreign Sales	3,392,900	3,160,100
Profit (Loss)	36,700	270,800
Assets	5,772,200	5,013,200
Long-lived Asset Expenditures	1,098,200	63,600
Depreciation and Amortization	$ 185,900	$ 188,400