Note 17 - Commitments and Contingencies (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Nov. 30, 2013	Aug. 31, 2013	Feb. 28, 2014
Note 17 - Commitments and Contingencies (Details) [Line Items]
Increase in Operating Lease Obligations			$ 12
Increase in Purchase Commitments			21
Agreement to Upgrade ERP System	1
Renewal [Member] | Primary Instrument Equipment Supplier [Member]
Note 17 - Commitments and Contingencies (Details) [Line Items]
Secured Debt, Repurchase Agreements			20
Self-Insurance Related to U.S. Medical Employee Benefits [Member] | Accrued Expenses and Other Current Liabilities [Member]
Note 17 - Commitments and Contingencies (Details) [Line Items]
Loss Contingency, Estimate of Possible Loss			0.6
LIFECODES [Member]
Note 17 - Commitments and Contingencies (Details) [Line Items]
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability	$ (3.3)	$ (1.3)	$ (4.5)