Annual report pursuant to Section 13 and 15(d)

Note 5 - Fair Value Measurements - Financial Instruments (Details)

v3.7.0.1
Note 5 - Fair Value Measurements - Financial Instruments (Details) - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
Asuragen [Member]    
Contingent consideration, deferred payments $ 4,500  
RedPath [Member]    
Contingent consideration, deferred payments 22,100  
Fair Value, Inputs, Level 1 [Member]    
Cash and cash equivalents, fair value disclosure   $ 8,310
Contingent consideration, deferred payments
Investments, fair value disclosure   1,352
Fair Value, Inputs, Level 1 [Member] | Asuragen [Member]    
Contingent consideration, deferred payments
Fair Value, Inputs, Level 1 [Member] | RedPath [Member]    
Contingent consideration, deferred payments
Fair Value, Inputs, Level 1 [Member] | Marketable Securities, Money Market Funds [Member]    
Investments, fair value disclosure   48
Fair Value, Inputs, Level 1 [Member] | Mutual Funds [Member]    
Investments, fair value disclosure   58
Fair Value, Inputs, Level 1 [Member] | US Treasury Securities [Member]    
Investments, fair value disclosure   1,115
Fair Value, Inputs, Level 1 [Member] | Government Agency Securities [Member]    
Investments, fair value disclosure   131
Fair Value, Inputs, Level 2 [Member]    
Cash and cash equivalents, fair value disclosure  
Contingent consideration, deferred payments
Investments, fair value disclosure  
Fair Value, Inputs, Level 2 [Member] | Asuragen [Member]    
Contingent consideration, deferred payments
Fair Value, Inputs, Level 2 [Member] | RedPath [Member]    
Contingent consideration, deferred payments
Fair Value, Inputs, Level 2 [Member] | Marketable Securities, Money Market Funds [Member]    
Investments, fair value disclosure  
Fair Value, Inputs, Level 2 [Member] | Mutual Funds [Member]    
Investments, fair value disclosure  
Fair Value, Inputs, Level 2 [Member] | US Treasury Securities [Member]    
Investments, fair value disclosure  
Fair Value, Inputs, Level 2 [Member] | Government Agency Securities [Member]    
Investments, fair value disclosure  
Fair Value, Inputs, Level 3 [Member]    
Cash and cash equivalents, fair value disclosure  
Contingent consideration, deferred payments 7,514 18,549
Investments, fair value disclosure  
Fair Value, Inputs, Level 3 [Member] | Asuragen [Member]    
Contingent consideration, deferred payments 1,545 4,628
Fair Value, Inputs, Level 3 [Member] | RedPath [Member]    
Contingent consideration, deferred payments 5,969 13,921
Fair Value, Inputs, Level 3 [Member] | Marketable Securities, Money Market Funds [Member]    
Investments, fair value disclosure  
Fair Value, Inputs, Level 3 [Member] | Mutual Funds [Member]    
Investments, fair value disclosure  
Fair Value, Inputs, Level 3 [Member] | US Treasury Securities [Member]    
Investments, fair value disclosure  
Fair Value, Inputs, Level 3 [Member] | Government Agency Securities [Member]    
Investments, fair value disclosure  
Reported Value Measurement [Member]    
Cash and cash equivalents, fair value disclosure 602 8,310
Contingent consideration, deferred payments 7,514 18,549
Investments, fair value disclosure   1,352
Reported Value Measurement [Member] | Asuragen [Member]    
Contingent consideration, deferred payments 1,545 4,628
Reported Value Measurement [Member] | RedPath [Member]    
Contingent consideration, deferred payments 5,969 13,921
Reported Value Measurement [Member] | Marketable Securities, Money Market Funds [Member]    
Investments, fair value disclosure   48
Reported Value Measurement [Member] | Mutual Funds [Member]    
Investments, fair value disclosure   58
Reported Value Measurement [Member] | US Treasury Securities [Member]    
Investments, fair value disclosure   1,115
Reported Value Measurement [Member] | Government Agency Securities [Member]    
Investments, fair value disclosure   131
Reported Value Measurement [Member] | Fair Value, Inputs, Level 1 [Member]    
Cash and cash equivalents, fair value disclosure 602  
Reported Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member]    
Cash and cash equivalents, fair value disclosure  
Reported Value Measurement [Member] | Fair Value, Inputs, Level 3 [Member]    
Cash and cash equivalents, fair value disclosure  
Estimate of Fair Value Measurement [Member]    
Cash and cash equivalents, fair value disclosure 602 8,310
Contingent consideration, deferred payments 7,514 18,549
Investments, fair value disclosure   1,352
Estimate of Fair Value Measurement [Member] | Asuragen [Member]    
Contingent consideration, deferred payments 1,545 4,628
Estimate of Fair Value Measurement [Member] | RedPath [Member]    
Contingent consideration, deferred payments 5,969 13,921
Estimate of Fair Value Measurement [Member] | Marketable Securities, Money Market Funds [Member]    
Investments, fair value disclosure   48
Estimate of Fair Value Measurement [Member] | Mutual Funds [Member]    
Investments, fair value disclosure   58
Estimate of Fair Value Measurement [Member] | US Treasury Securities [Member]    
Investments, fair value disclosure   1,115
Estimate of Fair Value Measurement [Member] | Government Agency Securities [Member]    
Investments, fair value disclosure   131
Cash [Member] | Fair Value, Inputs, Level 1 [Member]    
Cash and cash equivalents, fair value disclosure 602 7,534
Cash [Member] | Fair Value, Inputs, Level 2 [Member]    
Cash and cash equivalents, fair value disclosure
Cash [Member] | Fair Value, Inputs, Level 3 [Member]    
Cash and cash equivalents, fair value disclosure
Cash [Member] | Reported Value Measurement [Member]    
Cash and cash equivalents, fair value disclosure 602 7,534
Cash [Member] | Estimate of Fair Value Measurement [Member]    
Cash and cash equivalents, fair value disclosure 602 7,534
Money Market Funds [Member] | Fair Value, Inputs, Level 1 [Member]    
Cash and cash equivalents, fair value disclosure 776
Money Market Funds [Member] | Fair Value, Inputs, Level 2 [Member]    
Cash and cash equivalents, fair value disclosure
Money Market Funds [Member] | Fair Value, Inputs, Level 3 [Member]    
Cash and cash equivalents, fair value disclosure
Money Market Funds [Member] | Reported Value Measurement [Member]    
Cash and cash equivalents, fair value disclosure 776
Money Market Funds [Member] | Estimate of Fair Value Measurement [Member]    
Cash and cash equivalents, fair value disclosure $ 776