Note 4 - Fair Value Measurements (Details Textual) - USD ($) $ in Millions |
Dec. 31, 2016 |
Aug. 01, 2016 |
Mar. 14, 2016 |
Nov. 03, 2014 |
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| CyVek, Inc. [Member] | ||||
| Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High | $ 35.0 | |||
| Business Combination, Liabilities Arising from Contingencies, Amount Recognized | $ 35.0 | |||
| Zephyrus [Member] | ||||
| Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High | 7.0 | |||
| Business Combination, Liabilities Arising from Contingencies, Amount Recognized | $ 6.5 | |||
| Advanced Cell Diagnostics (ACD) [Member] | ||||
| Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High | 75.0 | $ 75.0 | ||
| Business Combination, Liabilities Arising from Contingencies, Amount Recognized | $ 38.2 | |||
| Advance Cell Diagnostics (ACD), Zephyrus, and CyVek Inc.[Member] | ||||
| Business Combination, Liabilities Arising from Contingencies, Amount Recognized | $ 79.7 |
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- Definition For contingent consideration arrangements recognized in connection with a business combination, this element represents an estimate of the high-end of the potential range (undiscounted) of the consideration which may be paid. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The amount, measured at acquisition-date fair value, of all liabilities assumed that arise from contingencies and were recognized by the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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