4. Segment Information and Concentrations (Details) (USD $)	3 Months Ended		9 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2013	Mar. 31, 2012
Depreciation and Amortization			$ 132,400	$ 141,600
Benchtop Laboratory Equipment [Member]
Net Sales	1,229,800	1,025,300	3,459,500	3,208,900
Foreign Sales	645,300	613,900	2,014,900	1,977,700
Profit (Loss)	243,300	80,700	518,100	341,300
Assets	2,719,500	2,446,300	2,719,500	2,446,300
Long-lived Asset Expenditures	1,700	7,500	10,900	21,500
Depreciation and Amortization	10,700	12,500	33,300	36,700
Catalyst Research Instruments [Member]
Net Sales	360,600	418,300	1,309,700	973,200
Foreign Sales	107,300	405,900	626,400	527,000
Profit (Loss)	3,600	(76,000)	(62,500)	(252,400)
Assets	1,932,600	1,239,700	1,932,600	1,239,700
Long-lived Asset Expenditures	1,200		19,300	49,500
Depreciation and Amortization	8,700	5,900	27,200	68,900
Bioprocessing Systems [Member]
Net Sales	35,700	75,900	85,500	75,900
Foreign Sales		3,600		3,600
Profit (Loss)	(41,700)	(16,300)	(147,600)	(48,600)
Assets	904,600	842,700	904,600	842,700
Long-lived Asset Expenditures				876,000
Depreciation and Amortization	24,000	24,000	71,900	36,000
Corporate and Other [Member]
Net Sales
Foreign Sales
Profit (Loss)		(4,100)		(62,300)
Assets	916,800	1,492,500	916,800	1,492,500
Long-lived Asset Expenditures
Depreciation and Amortization
Consolidated [Member]
Net Sales	1,626,100	1,519,500	4,854,700	4,258,000
Foreign Sales	752,600	1,023,400	2,641,300	2,508,300
Profit (Loss)	205,200	(15,700)	308,000	(22,000)
Assets	6,473,500	6,021,200	6,473,500	6,021,200
Long-lived Asset Expenditures	2,900	7,500	30,200	947,000
Depreciation and Amortization	$ 43,400	$ 42,400	$ 132,400	$ 141,600