Quarterly report pursuant to Section 13 or 15(d)

Note 3 - Acquisitions (Details Textual)

Note 3 - Acquisitions (Details Textual) - USD ($) $ in Thousands			5 Months Ended		6 Months Ended		12 Months Ended
	Aug. 01, 2016	Jul. 01, 2016	Dec. 31, 2016	Dec. 31, 2016	Dec. 31, 2016	Dec. 31, 2015	Jun. 30, 2016
Business Combination, Contingent Consideration, Liability			$ 92,100	$ 92,100	$ 92,100		$ 38,500
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability					12,400
Goodwill, Purchase Accounting Adjustments					$ 1,809
Developed Technology Rights [Member]
Finite-Lived Intangible Asset, Useful Life					15 years
Trade Names [Member]
Finite-Lived Intangible Asset, Useful Life					7 years 182 days
Customer Relationships [Member]
Finite-Lived Intangible Asset, Useful Life					10 years
Noncompete Agreements [Member]
Finite-Lived Intangible Asset, Useful Life					2 years
Space [Member]
Payments to Acquire Businesses, Gross		$ 9,000
Advanced Cell Diagnostics (ACD) [Member]
Payments to Acquire Businesses, Gross	$ 250,000
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High	75,000		75,000	75,000	$ 75,000
Business Combination, Purchase Price Allocation, Subsequent Adjustment			7,000
Business Combination, Working Capital, Subsequent Adjustment			700
Goodwill, Purchase Accounting Adjustments				(6,293)
Advanced Cell Diagnostics (ACD) [Member] \| The 2016 Revenue Equal or Exceed $30 Milliom [Member]
Business Combination, Contingent Consideration, Liability	25,000
Business Combination, Contingent Consideration, Liability, Trigger Amount of Revenue	30,000
Advanced Cell Diagnostics (ACD) [Member] \| The 2017 Revenues Equal or Exceed $45 Million [Member]
Business Combination, Contingent Consideration, Liability	50,000
Business Combination, Contingent Consideration, Liability, Trigger Amount of Revenue	45,000
Advanced Cell Diagnostics (ACD) [Member] \| The 2016 Revenue Hurdle Not Met and 2017 Revenue Hurdle Met [Member]
Business Combination, Contingent Consideration, Liability	25,000
Advanced Cell Diagnostics (ACD) [Member] \| Trigger a Reduced Earn-Out Payment [Member] \| Minimum [Member]
Business Combination, Contingent Consideration, Liability, Trigger Amount of Revenue	40,000
Advanced Cell Diagnostics (ACD) [Member] \| Trigger a Reduced Earn-Out Payment [Member] \| Maximum [Member]
Business Combination, Contingent Consideration, Liability, Trigger Amount of Revenue	$ 45,000
Zephyrus [Member]
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High			$ 7,000	$ 7,000	7,000
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability					3,000
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Intangibles					900
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Deferred Tax Assets					$ 300
Goodwill, Purchase Accounting Adjustments							$ 1,800