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Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities.

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Amount of increase (decrease) in the value of a contingent consideration liability, including, but not limited to, differences arising upon settlement.

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Amount of liability recognized arising from contingent consideration in a business combination.

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

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Note 12 - Fair Value (Details) (USD $)	6 Months Ended		12 Months Ended	3 Months Ended
Note 12 - Fair Value (Details) (USD $)	Nov. 30, 2014	Nov. 30, 2013	May 31, 2014	Nov. 30, 2013	Aug. 31, 2014	May 31, 2013
Note 12 - Fair Value (Details) [Line Items]
Cash and Cash Equivalents, at Carrying Value	$ 15,105,000	$ 36,223,000	$ 23,621,000	$ 36,223,000	$ 15,105,000	$ 29,388,000
Business Combination, Contingent Consideration, Liability	18,538,000		11,300,000			4,504,000
Other Liabilities, Noncurrent	31,034,000us-gaap_OtherLiabilitiesNoncurrent		23,833,000us-gaap_OtherLiabilitiesNoncurrent		31,034,000us-gaap_OtherLiabilitiesNoncurrent
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability	0	(4,638,000)	4,638,000
Contingent Consideration Liability [Member]
Note 12 - Fair Value (Details) [Line Items]
Accrued Liabilities	(100,000)
Other Liabilities, Noncurrent	18,400,000
Term Loan Facility [Member]
Note 12 - Fair Value (Details) [Line Items]
Long-term Debt, Fair Value	655,000,000		656,700,000
Notes Payable, Other Payables [Member]
Note 12 - Fair Value (Details) [Line Items]
Long-term Debt, Fair Value	435,300,000		446,300,000
LIFECODES [Member]
Note 12 - Fair Value (Details) [Line Items]
Business Combination, Contingent Consideration, Liability	18,500,000	4,600,000		4,600,000		4,500,000
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability				$ 3,300,000
Cash and Cash Equivalents [Member] \| Geographic Concentration Risk [Member] \| UNITED STATES
Note 12 - Fair Value (Details) [Line Items]
Concentration Risk, Percentage	24.00%		19.00%