Note 2 - Fair Value Measurement (Tables)

12 Months Ended

Dec. 31, 2016

Notes Tables

Fair Value, Liabilities Measured on Recurring Basis [Table Text Block]

			Fair v alue m easurements at December 31, 201 6 u sing
(in thousands)	December 31, 201 6		Quoted p rices in a ctive m arkets for i dentical a ssets (Level 1)		Significant o ther observable i nputs (Level 2)		Significant u nobservable i nputs (Level 3)
Liabilities:
Contingent purchase price consideration	$	3,475	$	—	$	—	$	3,475
Total	$	3,475	$	—	$	—	$	3,475

			Fair v alue m easurements at December 31, 201 5 u sing
(in thousands)	December 31, 201 5		Quoted p rices in a ctive m arkets for i dentical a ssets (Level 1)		Significant o ther observable i nputs (Level 2)		Significant u nobservable i nputs (Level 3)
Liabilities:
Contingent purchase price consideration	$	1,293	$	—	$	—	$	1,293
Total	$	1,293	$	—	$	—	$	1,293

Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]

(in thousands)	201 6
Balance – beginning	$	1,293
Immunetics acquisition (Note 17)		3,444
Change in fair value of contingent purchase price consideration		244
Write-off of Boulder contingent purchase price consideration		(1,452	)
Foreign currency adjustment		(54	)
Balance – ending	$	3,475

(in thousands)	2015
Balance – beginning	$	1,218
Change in fair value of c ontingent purchase price consideration		202
Foreign currency adjustment		(127	)
Balance – ending	$	1,293