Note 4 - Acquisitions (Detail) - Summary of Acquired Intangibles and Goodwill from Cyto Management Systems (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Jun. 30, 2011
(in Dollars)	$ 12,527	$ 9,620
Goodwill [Member] | Cyto Management System [Member]
Goodwill (in Dollars)	7
Maximum [Member] | Cyto Management System [Member] | Purchased Technology [Member]
Purchased technology	24.00%
Maximum [Member] | Cyto Management System [Member] | Customer Relationships [Member]
Customer relationships	23.00%
Minimum [Member] | Cyto Management System [Member] | Purchased Technology [Member]
Purchased technology	22.60%
Minimum [Member] | Cyto Management System [Member] | Customer Relationships [Member]
Customer relationships	25.00%
Cyto Management System [Member] | Trade Names [Member]
Tradename (in Dollars)	13
Tradename	2 years
Tradename	22.60%
Cyto Management System [Member] | Purchased Technology [Member]
Purchased technology (in Dollars)	1,721
Purchased technology	5 years
Cyto Management System [Member] | Customer Backlog [Member]
Customer backlog (in Dollars)	68
Customer backlog	4 months
Customer backlog	22.60%
Cyto Management System [Member] | Customer Relationships [Member]
Customer relationships (in Dollars)	369
Customer relationships	9 years
Cyto Management System [Member] | Noncompete Agreements [Member]
Non-compete agreements (in Dollars)	13
Non-compete agreements	6 months
Non-compete agreements	23.00%
Cyto Management System [Member]
(in Dollars)	2,184
Trade Names [Member]
(in Dollars)	24	11
Purchased Technology [Member]
(in Dollars)	5,696	3,234
Customer Relationships [Member]
(in Dollars)	6,670	6,251
Noncompete Agreements [Member]
(in Dollars)	$ 137	$ 124