Note 2 - Fair Value Measurement (Tables)

6 Months Ended

Jun. 30, 2019

Notes Tables

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

As of June 30, 2019	Level 1		Level 2		Level 3		Total
Assets:
Total cash and cash equivalents	$	19,617	$	—	$	—	$	19,617
Liabilities:
Contingent consideration - business combinations	$	—	$	—	$	1,931	$	1,931

As of December 31, 2018	Level 1		Level 2		Total
Total cash and cash equivalents	$	30,657	$	—	$	30,657