Quarterly report pursuant to Section 13 or 15(d)

Note 5 - Financial Instruments (Details)

v3.4.0.3
Note 5 - Financial Instruments (Details)
$ in Thousands
Mar. 31, 2016
USD ($)
Cash [Member] | Reported Value Measurement [Member]  
Cash and cash equivalents, fair value disclosure $ 3,564
Cash [Member] | Estimate of Fair Value Measurement [Member]  
Cash and cash equivalents, fair value disclosure 3,564
Cash [Member] | Fair Value, Inputs, Level 1 [Member]  
Cash and cash equivalents, fair value disclosure $ 3,564
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
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
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
Reported Value Measurement [Member] | Fair Value, Inputs, Level 1 [Member]  
Cash and cash equivalents, fair value disclosure $ 4,340
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
Reported Value Measurement [Member] | US Treasury Securities [Member]  
Investments, fair value disclosure $ 553
Reported Value Measurement [Member] | Asuragen [Member]  
Contingent consideration, deferred payments 4,628
Reported Value Measurement [Member] | RedPath [Member]  
Contingent consideration, deferred payments 13,921
Reported Value Measurement [Member]  
Cash and cash equivalents, fair value disclosure 4,340
Investments, fair value disclosure 18,549
Estimate of Fair Value Measurement [Member] | US Treasury Securities [Member]  
Investments, fair value disclosure 553
Estimate of Fair Value Measurement [Member] | Asuragen [Member]  
Contingent consideration, deferred payments 4,628
Estimate of Fair Value Measurement [Member] | RedPath [Member]  
Contingent consideration, deferred payments 13,921
Estimate of Fair Value Measurement [Member]  
Cash and cash equivalents, fair value disclosure 4,340
Investments, fair value disclosure 18,549
Fair Value, Inputs, Level 1 [Member] | US Treasury Securities [Member]  
Investments, fair value disclosure $ 553
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]  
Investments, fair value disclosure
Fair Value, Inputs, Level 2 [Member] | US Treasury Securities [Member]  
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]  
Investments, fair value disclosure
Fair Value, Inputs, Level 3 [Member] | US Treasury Securities [Member]  
Investments, fair value disclosure
Fair Value, Inputs, Level 3 [Member] | Asuragen [Member]  
Contingent consideration, deferred payments $ 4,628
Fair Value, Inputs, Level 3 [Member] | RedPath [Member]  
Contingent consideration, deferred payments 13,921
Fair Value, Inputs, Level 3 [Member]  
Investments, fair value disclosure $ 18,549