Quarterly report pursuant to Section 13 or 15(d)

Note 5 - Fair Value Measurements (Details Textual)

v3.19.1
Note 5 - Fair Value Measurements (Details Textual) - USD ($)
$ in Thousands
Mar. 31, 2019
Oct. 31, 2018
Aug. 01, 2018
Jul. 02, 2018
Jun. 30, 2018
Business Combination, Liabilities Arising from Contingencies, Amount Recognized         $ 6,700
Exosome Diagnostics, Inc [Member]          
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High $ 325,000   $ 325,000    
Business Combination, Liabilities Arising from Contingencies, Amount Recognized         1,800
QT Holdings Corporation [Member]          
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High 51,000     $ 51,000  
Business Combination, Liabilities Arising from Contingencies, Amount Recognized         4,900
Embedded Derivative Financial Instruments [Member] | Cash Flow Hedging [Member]          
Derivative, Notional Amount   $ 380,000      
CCXI [Member]          
Investments, Total $ 18,800       $ 18,800